1.Deploying DeepSeek on 96 H100 GPUs(Deploying DeepSeek on 96 H100 GPUs)
No summary available.
2.Private Equity Snaps Up Disability Services, Challenging Regulators(Private Equity Snaps Up Disability Services, Challenging Regulators)
No summary available.
3.Gun Maker Sig Sauer Citing National Security to Keep Documents from Public(Gun Maker Sig Sauer Citing National Security to Keep Documents from Public)
In a legal battle over the Army's Failure Modes, Effects, and Criticality Analysis (FMECA) for Sig Sauer's P320, the Eighth Circuit Court is now involved. A media outlet, The Trace, is pushing for transparency and wants key documents to be public, arguing that the public has a right to access information that was cited multiple times in court when certifying a class action against Sig Sauer.
Sig Sauer argues that the FMECA should remain sealed due to "national security" concerns and wants time for the Army to provide input. They confirmed there are two FMECA documents involved: a spreadsheet and a previously undisclosed memorandum, which raises questions about its content and authorship.
The Trace's filing emphasizes that the FMECA has already been shared widely online and discussed by Sig Sauer's executives, suggesting it is no longer a secret. They argue that withholding the FMECA is not justified under Department of Defense regulations, which allow for the release of unclassified performance evaluations.
Key points to watch for include whether the court will allow public access to the documents, how the Army will respond regarding the FMECA's status, and the potential release of the memorandum, which could reveal important internal assessments by Sig Sauer related to the product's safety.
4.Essential Coding Theory [pdf](Essential Coding Theory [pdf])
Summary of "Essential Coding Theory"
This book, written by Venkatesan Guruswami, Atri Rudra, and Madhu Sudan, is based on lecture notes from courses on coding theory. It covers fundamental concepts in coding theory, including error correction, code distances, and specific types of codes like Hamming and Reed-Solomon codes. The material is supported by the National Science Foundation.
The book is organized into sections that explore basic definitions, mathematical foundations, and various types of coding techniques. Key topics include:
- Fundamental Concepts: Introduces coding theory and basic definitions.
- Error Correction: Discusses how codes can correct errors in data transmission.
- Linear Codes: Explores linear codes and their properties.
- Probability and Entropy: Covers the role of probability in coding theory.
- Combinatorial Aspects: Looks at bounds and limitations in coding.
- Algorithms: Details decoding methods for different codes.
- Applications: Discusses real-world applications like hashing and securing data, as well as theoretical insights into coding problems.
The book aims to provide a comprehensive understanding of coding theory, suitable for students and researchers in computer science and engineering. It is licensed under a Creative Commons license for non-commercial use. For updates, the latest version can be found online.
5.Sosumi.ai – Convert Apple Developer docs to AI-readable Markdown(Sosumi.ai – Convert Apple Developer docs to AI-readable Markdown)
The author created a tool to improve access to Apple Developer documentation, which is often not readable by AI tools due to being rendered in JavaScript. The tool converts Apple docs into clean markdown format. Users can change the URL from "developer.apple.com" to "sosumi.ai" to access the AI-friendly content.
For example:
- Original URL: https://developer.apple.com/documentation/swift/double
- New URL: https://sosumi.ai/documentation/swift/double
The tool runs on Cloudflare Workers and extracts structured data from Apple’s documentation, making it easier to read and search. The author encourages users to try it out and share their feedback.
6.Updates to Consumer Terms and Privacy Policy(Updates to Consumer Terms and Privacy Policy)
No summary available.
7.Intel's "Clearwater Forest" Xeon 7 E-Core CPU Will Be a Beast(Intel's "Clearwater Forest" Xeon 7 E-Core CPU Will Be a Beast)
No summary available.
8.Vectorless RAG(Vectorless RAG)
Not all improvements require adding complexity; sometimes, simplifying is key. PageIndex takes a unique approach to retrieval-augmented generation (RAG) by using a hierarchical tree structure from documents instead of vector databases. This method mimics how humans read by navigating through sections rather than matching data points.
The result is a more transparent and understandable retrieval process, which helps teams trust the results and troubleshoot issues more easily. This approach shows that powerful retrieval doesn’t have to rely on complex vectors; using document structure and logical reasoning can be just as effective.
9.How do I get into the Game Industry – by Garry's Mod creator(How do I get into the Game Industry – by Garry's Mod creator)
No summary available.
10.Meta might be secretly scanning your phone's camera roll(Meta might be secretly scanning your phone's camera roll)
No summary available.
11.Find Hidden Gems on HN(Find Hidden Gems on HN)
The author has created a website called HN Overlooked that helps users discover overlooked posts on Hacker News. They built it because they often missed interesting content that didn’t appear at the top of the page. The idea came to them one night while recording a session, and they decided to turn it into a simple web app.
The website uses the Hacker News API, which is easy to work with since it doesn't require an API key. The author enjoyed experimenting with coding, using a tool called Claude Code, to develop this project. They have open-sourced the code, and it can be found on GitHub.
12.Taco Bell rethinks AI drive-through after man orders 18,000 waters(Taco Bell rethinks AI drive-through after man orders 18,000 waters)
No summary available.
13.Fake accounts drove the DeepSeek AI hype and distorted markets(Fake accounts drove the DeepSeek AI hype and distorted markets)
Summary of DeepSeek Disinformation Findings
DeepSeek, a new AI model from China, created a significant buzz in the market, but much of the excitement was artificially generated through fake accounts. Research shows that about 15% of the online engagement around DeepSeek came from these coordinated fake profiles, which acted like a bot network to create the illusion of popularity.
Key Points:
-
Artificial Hype: The enthusiasm for DeepSeek was not genuine; it was fueled by thousands of fake accounts amplifying each other’s messages and blending into real conversations.
-
Fake Account Behavior:
- Fake profiles boosted each other’s posts and hijacked trending topics to promote DeepSeek.
- They often used generic avatars and created similar praise-filled comments simultaneously, showing typical bot activity.
-
Market Impact: The artificial excitement influenced U.S. markets, leading to significant financial losses as investors reacted to the hype.
-
Detection Recommendations:
- Organizations should implement monitoring tools to detect disinformation quickly.
- A structured rollout plan for disinformation detection should involve setting up monitoring systems, running simulations, and developing rapid response strategies.
-
Broader Implications: This incident highlights the risk of disinformation in decision-making, stressing the importance of distinguishing between real and fake engagement, especially in the tech industry.
-
Conclusion: The DeepSeek case serves as a cautionary tale for leaders and investors to be vigilant about the authenticity of engagement, as misleading information can distort market perceptions and influence investment decisions.
14.Deepnote (YC S19) is hiring engineers to build a better Jupyter notebook(Deepnote (YC S19) is hiring engineers to build a better Jupyter notebook)
No summary available.
15.If you have a Claude account, they're going to train on your data moving forward(If you have a Claude account, they're going to train on your data moving forward)
No summary available.
16.Seedbox Lite: A lightweight torrent streaming app with instant playback(Seedbox Lite: A lightweight torrent streaming app with instant playback)
SeedBox Lite Summary
SeedBox Lite is a modern torrent streaming application that allows users to watch movies and TV shows instantly without waiting for downloads. It offers a user-friendly experience similar to Netflix and is built with advanced web technologies.
Key Features:
- Instant Streaming: Watch content as it downloads.
- Password Protection: Secure access with user authentication.
- Mobile Optimization: Responsive design for all devices.
- Smart Video Player: Supports subtitles and fullscreen mode.
- Cross-Platform Compatibility: Works on Windows, macOS, and Linux.
- Fast Setup: Quick deployment using Docker or PM2.
User Experience:
- Designed with a familiar Netflix-style interface.
- Touch-friendly controls for mobile users.
Technical Specs:
- Supports various video formats (MP4, MKV, AVI).
- Intelligent caching and progress tracking.
- Built-in health monitoring for performance checks.
Installation:
SeedBox Lite can be set up using Docker or PM2, with clear instructions for cloning the repository, configuring environment variables, and starting the application.
Security and Compliance:
Users must change the default password and ensure they use the app legally, as it is intended for accessing content they have rights to. The software is for personal use only, with strict restrictions against commercial use or redistribution.
Conclusion:
SeedBox Lite is a feature-rich tool for streaming torrents quickly and securely, ideal for users looking for a seamless viewing experience on various devices.
17.A minimal TS library that generates prompt injection attacks(A minimal TS library that generates prompt injection attacks)
I created a simple, open-source Typescript library that helps generate prompt injection attacks, based on recent research. It's lightweight and user-friendly. I welcome your feedback, but please remember to only test systems where you have permission to do so!
18.Make any site multiplayer in a few lines. Serverless WebRTC matchmaking(Make any site multiplayer in a few lines. Serverless WebRTC matchmaking)
The text describes how a website allows users to connect with each other in real-time by syncing mouse movements and clicks. Here are the key points:
- The site uses various technologies (like BitTorrent, Nostr, MQTT, IPFS, Supabase, and Firebase) to connect users.
- Currently, you are the only one on the page, but you can open the page in another tab to see how it works with multiple users.
- To use the service, you need to join a room by providing an app ID and a room ID with some simple code.
- You can track when other users join or leave the room.
- You can send actions like mouse movements and clicks to other users and respond to their actions.
- The page also supports more features like audio/video streaming and file sharing. For more details, you can check the documentation.
In summary, this site enables real-time interaction between users through mouse movements and clicks, with potential for more advanced features.
19.Probability of typing a wrong Bitcoin address(Probability of typing a wrong Bitcoin address)
The article discusses the risks of typing errors when entering Bitcoin addresses. While mistakes can happen, the likelihood of sending Bitcoin to the wrong address due to a typo is not as concerning as some believe.
Key Points:
-
Checksums: Bitcoin addresses include checksums that help prevent errors. The chance of a typo resulting in a valid address is about 1 in 2^32 (or roughly 4 billion).
-
Address Distribution: Bitcoin addresses are generated randomly, so a typo is just as likely to match any valid address as a randomly typed sequence would be. This is different from typos in regular words, which tend to resemble other words more closely.
-
Address Similarity: There are about a billion Bitcoin addresses, but the chances of two addresses being just one or two characters away from each other are still very low, even when considering possible typos.
-
Collision Probability: The chance that two addresses (including their plausible typos) will collide is extremely unlikely. To have a 50-50 chance of a collision, you would need a huge number of random tries, far exceeding the number of existing addresses.
In summary, while it’s important to be careful when entering Bitcoin addresses, the risk of making a typo that results in sending money to the wrong person is very small.
20.It’s Not Wrong that (for HN) “[facepalm emoji]”.length == 36(It’s Not Wrong that (for HN) “[facepalm emoji]”.length == 36)
The author discusses a humorous incident regarding a post they made on Hacker News (HN) about emojis. They initially noticed that emojis in their post were replaced by a space character when viewed on HN, which led to some confusion. The post's title was later changed to reflect this, making it clear that the emoji's length is 36 characters due to encoding. The author finds it amusing that the platform has to handle emojis in this way and notes the technical aspects of how emojis are represented in code. Overall, it's a light-hearted commentary on programming and emoji usage in online discussions.
21.Lucky 13: a look at Debian trixie(Lucky 13: a look at Debian trixie)
No summary available.
22.Claude Sonnet will ship in Xcode(Claude Sonnet will ship in Xcode)
Xcode 26 Beta 7 Release Notes Summary
Xcode 26 Beta 7 introduces new features and improvements for various Apple platforms, including SDKs for iOS, iPadOS, tvOS, watchOS, macOS, and visionOS. Key updates include:
- On-Device Debugging: Supported for iOS 16+, tvOS 16+, watchOS 8+, and visionOS.
- MacOS Requirement: Requires macOS Sequoia 15.5 or newer.
Known Issues
- User Interface Changes: The Related Items menu is simplified for faster editor load times, but some functionalities are still available through different menus.
- Simulators: May fail to boot after upgrading macOS; a rebuild usually resolves this.
- Coding Assistant: The “Cancel” button may not work as expected; a workaround is provided.
- C++ Issues: Users may face errors when updating from earlier Xcode 26 betas; a Terminal command is suggested as a fix.
- Address Sanitizer: C++ container overflow checks are now enabled by default and cannot be turned off in build settings.
New Features
- Coding Intelligence: Integration of Claude and ChatGPT models for coding assistance, with GPT-5 as the default model for faster results.
- Swift Testing: New support for exit tests, enhanced runtime issue detection, and improved UI for test recordings.
Improvements and Fixes
- Various updates have resolved issues related to the coding assistant, build processes, and user interface elements. Specific functionality like predictive code completion and Swift explicit modules has also been enhanced.
General Guidance
Developers are encouraged to update their apps to leverage new features and test for any API changes. Known issues are documented with suggested workarounds for smoother development experiences.
23.Strange CW Keys(Strange CW Keys)
The text lists various creative and unusual types of CW (Continuous Wave) keys, which are used in Morse code communication. These keys are made from everyday items and include:
- Common objects like a toilet brush, watering can, and hammer
- Fun items like a lightsaber, nutcracker, and chocolate
- Tools and appliances such as a power drill, vacuum cleaner, and waffle iron
- Other quirky items like a crutch, beer can, and Lego pieces
The collection showcases the imagination and resourcefulness of the creator, OH6DC, who encourages users to explore a categorized index of these unique CW keys.
24.Some thoughts on LLMs and software development(Some thoughts on LLMs and software development)
The content includes videos organized into a content index, covering topics like board games and photography.
25.PSA: Libxslt is unmaintained and has 5 unpatched security bugs(PSA: Libxslt is unmaintained and has 5 unpatched security bugs)
No summary available.
26.Tesla said it didn't have key data in a fatal crash, then a hacker found it(Tesla said it didn't have key data in a fatal crash, then a hacker found it)
No summary available.
27.Auto-Match – How We Built Receipt-to-Transaction Matching (Open Source)(Auto-Match – How We Built Receipt-to-Transaction Matching (Open Source))
I’ve created a system to automate bookkeeping, specifically to make reconciling receipts with bank transactions easier. This system works in the background, reads receipts (including those from Gmail), suggests matches, and improves its accuracy over time by learning from user confirmations. It is part of a project called Midday and is open-source. Feel free to ask if you have any questions!
28.Uncertain<T>(Uncertain<T>)
The text discusses the challenges of working with certainty in programming, particularly in software development. It argues that many people are overly confident, often leading to oversimplified decisions. The author, Mattt, highlights the issue of uncertainty in GPS data and suggests a programming approach that acknowledges this uncertainty.
Key points include:
-
Confidence vs. Humility: People tend to favor confident statements, even if they lack nuance. In software, reaching senior levels often requires acknowledging complexities with phrases like “it depends.”
-
Uncertain<T> Concept: A proposed type system from research allows uncertainty to be part of programming. For example, rather than simply saying if a GPS location is within a certain distance, the code can express the probability of that being true.
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Monte Carlo Sampling: The text introduces the Monte Carlo method, which uses random sampling to estimate probabilities, rather than relying solely on analytical methods.
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Practical Applications: The author illustrates how to model various uncertainties in real-world scenarios, such as GPS noise, user behavior, and network delays, using the Uncertain<T> framework.
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Gradual Integration: Mattt suggests a gradual approach to incorporating these concepts into existing code, emphasizing the importance of recognizing and managing uncertainty rather than pretending it doesn’t exist.
-
Conclusion: The goal is not to eliminate uncertainty but to handle it effectively, allowing for smarter and more reliable software development.
The article aims to promote a shift in mindset towards embracing uncertainty in programming.
29.Contrastive Representations for Temporal Reasoning(Contrastive Representations for Temporal Reasoning)
The main question is whether we can enhance our understanding of time-related problems by improving how we represent them. The method used involves a new negative sampling technique that helps in learning these temporal representations. The results show that CRTR can learn these representations effectively, allowing it to solve the Rubik's Cube without needing pre-made strategies, and it overall increases success rates.
30.Fuck up my site – Turn any website into beautiful chaos(Fuck up my site – Turn any website into beautiful chaos)
The text describes a chaotic web tool designed for fun and entertainment. It allows users to apply silly effects to websites, like changing all text to Comic Sans, making cursors act like torches, or creating annoying popups. However, it is important to note that this tool is only for parody, and users should never enter sensitive information like passwords or credit card details while using it. The tool is not secure for real transactions and blocks access to banking and government sites. Users are encouraged to provide feedback on any issues they encounter.
31.The government of my country blocked VPN access. What should I use?(The government of my country blocked VPN access. What should I use?)
Indonesia is facing turmoil. The government has blocked access to Twitter and Discord, which are popular for sharing news. People typically use Cloudflare's WARP to bypass such blocks, but today that option is also unavailable. The question is: what alternative can be used now?
32.Expert: LSP for Elixir(Expert: LSP for Elixir)
Summary of Expert Language Server for Elixir
-
What is Expert?
Expert is the official language server for the Elixir programming language. -
Installation:
You can download Expert from the releases page. Place the executable in a location on your system’s $PATH, such as~/.local/bin/expert
. For specific installation steps for different editors, check the Installation Instructions. -
Nightly Builds:
To access the latest features, download a nightly build using the GH CLI with this command:
gh release download nightly --pattern 'expert_linux_amd64' --repo elixir-lang/expert
. Then, direct your editor to the downloaded file. -
Building from Source:
If you prefer to build Expert from source, install Zig version 0.14.1. Run the commandjust release-local
to create the Expert binary, found in theapps/expert/burrito_out
directory. -
Sponsorship:
Thanks to corporate sponsors! Companies interested in sponsoring can contact Dan Janowski at [email protected]. Individuals can donate via GitHub sponsors. -
Additional Resources:
More information is available in the Architecture, Development Guide, Glossary, and Installation Instructions sections. -
License:
Expert's source code is under the Apache License 2.0. For details, refer to the LICENSE file.
33.The Space Shuttle Columbia disaster and the over-reliance on PowerPoint (2019)(The Space Shuttle Columbia disaster and the over-reliance on PowerPoint (2019))
In his article, James Thomas discusses the dangers of poorly designed PowerPoint presentations, highlighting a tragic example from NASA's Space Shuttle Columbia disaster. On January 16, 2003, Columbia launched with a crew of seven for a scientific mission. During launch, foam insulation struck the shuttle's left wing, potentially causing damage that was not fully understood by NASA.
NASA officials relied on a PowerPoint presentation from Boeing engineers, which contained misleading information and was difficult to interpret. Key details about the foam strike's severity were buried in confusing bullet points and small text. This led NASA to mistakenly conclude that re-entry would be safe, resulting in Columbia disintegrating upon re-entry and the loss of all crew members.
Thomas emphasizes that over-reliance on PowerPoint can hinder clear communication and critical thinking. He advocates for more effective presentation methods, warning that "death by PowerPoint" can have real consequences, as demonstrated by this tragedy.
34.Nullable vs. Nullable in C#(Nullable vs. Nullable in C#)
No summary available.
35.My startup banking story (2023)(My startup banking story (2023))
The author, a young startup founder, initially viewed banks as interchangeable, believing that banking was a simple process of depositing and withdrawing money. After opening a business account with Chase, he received funding from investors but did not engage deeply with his banker, Alex, who would occasionally check in after large deposits. Over several years, the company grew, and the author eventually moved funds to Silicon Valley Bank for better financial management.
In a twist, the author later learned that Alex had become well-known at Chase due to the significant growth of his account, but was left in a tough position when the account was emptied overnight. Meanwhile, the author neglected to close the original Chase account, leading to fraud issues where over $100,000 was lost due to unauthorized transactions.
When he finally attempted to close the account years later, he faced challenges due to the bank's rules regarding large transactions. After navigating the process, he successfully closed the account and deposited a cashier's check from Chase into his new bank.
In reflection, the author recognizes his naivety and the missed opportunities to build a stronger relationship with his bank. He concludes that while there were challenges, the eventual outcomes were positive, and he learned valuable lessons about banking as a startup founder.
36.AI coding made me faster, but I can't code to music anymore(AI coding made me faster, but I can't code to music anymore)
No summary available.
37.Apple Health lies to you about your six months sleep average(Apple Health lies to you about your six months sleep average)
Meet Saverage Summary
Saverage is a small app that reveals how Apple Health misrepresents your sleep average over six months. It suggests that Apple may inaccurately calculate the number of days in this average, leaving out about 32 days, which makes your sleep habits seem better than they are. The app questions why this issue exists and expresses hope that it can be corrected, as the fix should be straightforward.
38.Dedalus Labs (YC S25) – Vercel for Agents(Dedalus Labs (YC S25) – Vercel for Agents)
Windsor and Cathy from Dedalus Labs have created a cloud platform that helps developers build AI applications easily. Their SDK allows you to connect any large language model (LLM) to various tools without needing complex setups like Dockerfiles or YAML configurations.
Previously, setting up these connections took a lot of time and effort, but Dedalus simplifies the process to just one API endpoint. This means what used to take weeks can now be done in just 5 minutes. Developers can upload their tools to Dedalus's platform and use user-friendly SDKs to integrate them into their projects.
They acknowledge that there are still challenges, especially with security and authentication in the tool-calling process. However, they are optimistic about improving the system and are working on a solution for authentication and an MCP marketplace for monetizing tools.
They encourage feedback from the community on any obstacles faced when integrating these tools and invite developers to explore their open-source SDKs available on GitHub.
39.Building your own CLI coding agent with Pydantic-AI(Building your own CLI coding agent with Pydantic-AI)
The text includes a list of topics or categories: Videos, Content Index, Board Games, and Photography.
40.In Search of AI Psychosis(In Search of AI Psychosis)
The text discusses the phenomenon of "AI psychosis," where some individuals may experience mental health issues after prolonged interactions with chatbots. Key points include:
-
Understanding AI Psychosis: There are anecdotal reports of people becoming mentally unstable after excessive chatbot use, but it's unclear how common this is or if chatbots are the cause. The author estimates that AI psychosis occurs in about 1 in 10,000 to 1 in 100,000 people annually.
-
Historical Context: The author references a performance art piece from the 1990s that led many Russians to believe absurd ideas, drawing parallels to how people might uncritically accept chatbot responses.
-
Social Media Influence: The text discusses how conspiracy theories like QAnon spread via social media but questions whether social media can induce psychosis. It suggests that widespread beliefs may not be classified as psychotic.
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Crackpot Ideas: Many individuals hold unconventional beliefs without being mentally ill. The author posits that chatbots can amplify these ideas, making them more pronounced.
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Bipolar Disorder and Delusions: The author explores the relationship between sleep and bipolar disorder, suggesting that delusions can escalate in a feedback loop, similar to how chatbot interactions might affect one's mental state.
-
Folie à Deux: The concept of two people sharing a delusion is examined, likening it to how individuals might reinforce each other's beliefs through chatbot interactions.
-
Survey Findings: A survey of blog readers indicated that 1.7% reported cases of AI psychosis among people they know, with most being individuals with pre-existing mental health issues or risk factors.
In conclusion, while there are concerns about the impact of AI on mental health, particularly for vulnerable individuals, the phenomenon of AI psychosis appears to be rare and often linked to pre-existing conditions.
41.The Synology End Game(The Synology End Game)
The author, a longtime fan of Synology NAS devices, expresses frustration over recent changes in the company's policies that he finds customer-unfriendly. He mentions:
-
Connection Limits: Synology has imposed limits on the number of concurrent connections for certain models, which he sees as an unnecessary restriction.
-
Hard Drive Policies: Previously, users could choose any compatible hard drives, but now Synology requires new customers to buy drives directly from them, limiting options and causing concern about compatibility with existing drives.
-
Quality Concerns: The author notes that Synology’s hard drives come with shorter warranties compared to others, like WD Black drives.
Due to these issues, he is considering alternatives, such as building his own NAS with TrueNAS or exploring other brands like UGREEN or Buffalo. The overall sentiment is a shift away from Synology due to their new policies.
42.A tiny (1000 lines), fastish, embeddable scripting language can be AOT compiled(A tiny (1000 lines), fastish, embeddable scripting language can be AOT compiled)
The author created a small, fast, embeddable scripting language called Filli, similar to Lua and Python, using C23 (or C99 with GNU extensions). It has a permissive license and includes features like functions, closures, and dictionaries. The interpreter is about twice as slow as Lua, but it also has an Ahead-Of-Time (AOT) compilation version that significantly improves performance, making it 6 times faster than the interpreter in some cases.
Filli is designed to be lightweight, with only 1000 lines of code. The author focused on keeping the language simple and efficient, avoiding complex structures like Abstract Syntax Trees (ASTs) to minimize code size. After several performance adjustments, including switching compilers and optimizing the interpreter's structure, Filli's performance improved to be competitive with LuaJIT.
The AOT compilation method involves converting the bytecode into C code, which can then be compiled with a standard C compiler. While there are some limitations, such as a maximum of 32,000 identifiers per source file, the language is easy to analyze and debug due to its simplicity.
Overall, Filli aims to provide a compact yet functional scripting language with decent performance, making it suitable for embedding in other applications. The source code is available for those interested in exploring or using the language.
43.Rupert's Property(Rupert's Property)
Rupert's Property refers to the ability to cut a hole in a convex polyhedron that is large enough for an identical copy of that polyhedron to slide through. Recently, researchers Jakob Steininger and Sergey Yurkevich proved that there exists a convex polyhedron, called a "noperthedron," which does not have this property. This polyhedron has 90 vertices, 240 edges, and 152 faces.
To confirm this finding, they conducted a computer search of 18 million potential holes and used advanced mathematics to ensure they had explored enough options. The name "Rupert's Property" comes from Prince Rupert of the Rhine, who originally posed the question of whether a cube could pass through a hole in another cube of the same size.
44.Thrashing(Thrashing)
Summary of "Thrashing"
The author discusses frustrations with how distractions and multitasking are often blamed on individuals instead of recognizing leadership's role. They emphasize that many articles fail to mention the importance of management and organizational culture in addressing these issues.
The author argues that people multitask due to being assigned multiple tasks without clear priorities, and that blaming individuals for lack of focus is unfair. Tools like Asana and Trello are criticized for not being true productivity tools, as they place management responsibilities onto employees rather than streamlining work.
The key point is that effective teamwork and a productive work environment depend on strong leadership that fosters a supportive culture. Real change in managing distractions and multitasking can only occur when accountability lies with those in leadership roles, not with employees who are already overwhelmed.
45.Egypt rounds up teenaged TikTokkers in crackdown on social media(Egypt rounds up teenaged TikTokkers in crackdown on social media)
No summary available.
46.The Myths of Chinese Exceptionalism(The Myths of Chinese Exceptionalism)
No summary available.
47.Python: The Documentary [video](Python: The Documentary [video])
No summary available.
48.You no longer need JavaScript: an overview of what makes modern CSS so awesome(You no longer need JavaScript: an overview of what makes modern CSS so awesome)
The text explains how to write modern and tidy CSS and HTML.
For CSS, it suggests using a structure that defines styles for a component called "cool-thing." The styles include:
- Making it a flex container.
- Adding a shadow effect when a "shadow" attribute is present.
- Changing the layout to a column on screens smaller than 480 pixels wide.
For HTML, it shows an example of using the "cool-thing" component with the shadow effect applied.
Overall, the text promotes a clean and contemporary approach to coding.
49.Sometimes CPU cores are odd(Sometimes CPU cores are odd)
The text informs users that the website is ensuring a secure connection and is protected by Anubis from Techaro. It mentions that the site is hosted by Techaro and provides a contact email for support. Additionally, it notes that the website is using a specific version of Anubis software.
50.Draft SMS and iMessage from any computer keyboard(Draft SMS and iMessage from any computer keyboard)
No summary available.
51.TuneD is a system tuning service for Linux(TuneD is a system tuning service for Linux)
No summary available.
52.AI adoption linked to 13% decline in jobs for young U.S. workers: study(AI adoption linked to 13% decline in jobs for young U.S. workers: study)
No summary available.
53.Will AI Replace Human Thinking? The Case for Writing and Coding Manually(Will AI Replace Human Thinking? The Case for Writing and Coding Manually)
No summary available.
54.What to learn for math for modeling?(What to learn for math for modeling?)
The author is struggling to understand concepts related to curves and graphics, such as parametric cubic curves, boundary representation, blending functions, splines, B-splines, cubic Bézier curves, and the de Casteljau algorithm. They have tried studying from textbooks by Peter Shirley and others, but feel they lack the necessary math skills to grasp the material. As a computer engineering graduate, they have taken math classes but now realize they need to revisit the foundational concepts to understand the logic behind the formulas. They are looking for resources to help them review and improve their math understanding.
55.Firecracker: Secure and fast microVMs for serverless computing(Firecracker: Secure and fast microVMs for serverless computing)
No summary available.
56.Web Bot Auth(Web Bot Auth)
Summary of Web Bot Auth Overview
Web Bot Auth is a method for verifying automated bot requests using cryptographic signatures in HTTP messages. It ensures that requests are genuinely coming from verified bots and signed agents. The process involves several key steps:
-
Generate Signing Keys: Create a unique Ed25519 private key for signing requests and extract the public key. Convert the public key to JSON Web Key (JWK) format.
-
Host a Key Directory: Set up a key directory at a specific URL that serves a JSON Web Key Set (JWKS) containing your public key. This directory must be secured with HTTPS.
-
Register Your Bot: Log into Cloudflare, navigate to account settings, and register your bot by providing the URL of your key directory. This step includes submitting user agent values if needed.
-
Sign Your Requests (Post Verification): After your bot is verified, it can sign its requests using specific components and headers. Important headers include Signature-Input, Signature, and Signature-Agent, which must conform to defined formats.
Additional Resources: You can find more information in the Bots FAQs, Cloudflare blogs, and their web-bot-auth libraries.
This process ensures secure communication between your bot and Cloudflare, protecting against unauthorized access.
57.Open Source is one person(Open Source is one person)
The article by Josh Bressers discusses the reality of open source software, highlighting that many projects are maintained by just one person. The piece criticizes a recent news story that unfairly targets a single developer based on their nationality, arguing that this approach is misguided.
Key points include:
-
Open Source Landscape: There are approximately 11.8 million open source projects, with about 7 million being maintained by a single individual. This shows a significant reliance on solo developers.
-
NPM Ecosystem: When examining the NPM package manager, it's revealed that nearly half of the most downloaded packages (over 1 million downloads) are managed by one person. This pattern holds across various open source ecosystems.
-
Risks of Single Maintainers: The article suggests that the real risk in open source comes from the lack of resources and support for these solo maintainers, rather than their nationality. It emphasizes that targeting individual developers is not a constructive approach.
-
Call to Action: The author encourages readers to recognize the importance of supporting open source maintainers rather than demonizing them based on their backgrounds. The article concludes that addressing the challenges faced by these developers is essential for the health of the open source ecosystem.
58.Wearmouse (Android Wear)(Wearmouse (Android Wear))
WearMouse Summary
WearMouse is a project that uses the new Bluetooth HID Device API introduced in Android P. It turns a Wear OS device into an air mouse and allows for cursor key emulation. However, it is not an official Google product.
Compatibility:
- Works on Wear OS devices with Android P or later.
- Can connect to various computers (Windows, Linux, Chrome OS, Mac OSX, Android TV) that have Bluetooth, without needing extra software.
How to Use the App:
- When you open the app, you'll see a list of paired devices.
- To pair with a laptop or desktop, tap on "Available devices" to find nearby options.
- Once paired, select the device to connect, which will show the Input Mode options.
- You can choose between Mouse, Cursor Keys, and Keyboard Input modes, with each mode providing a welcome screen explaining its use.
Code Structure:
- /bluetooth: Contains files for HID Device emulation and app configuration.
- /input: Includes tools for sending input events and converting keyboard characters to scan codes.
- /sensors: Implements orientation tracking using the Google VR library for accurate motion sensing.
- /ui: Manages the user interface.
59.A forgotten medieval fruit with a vulgar name (2021)(A forgotten medieval fruit with a vulgar name (2021))
The medlar is a unique fruit that was popular in medieval Europe, known for its strange requirement of being eaten only when rotten. While the fruit's polite name is "medlar," it was once referred to as "open-arse" due to its shape. It was introduced to Europe by the Romans and became a staple in gardens, literature, and royal courts. Despite its popularity, the medlar began to decline in the 17th century and eventually vanished from mainstream awareness by the mid-20th century, overshadowed by more convenient tropical fruits.
The medlar tree, Mespilus germanica, is long-lived and produces fruit that is harvested in December. The fruit undergoes a process called "bletting," where it must rot to become edible, transforming from a hard, astringent state to a sweet, complex flavor. This unusual characteristic contributed to its literary symbolism but also made it less appealing for modern consumption.
Today, medlar trees can still be found in Europe, often overlooked, though the fruit remains popular in parts of the Caspian region. There are signs of a resurgence in interest in the medlar in Europe, thanks to enthusiasts promoting its culinary uses, like jam and gin.
60.Growing the Java Language(Growing the Java Language)
No summary available.
61.Microbial metabolite repairs liver injury by restoring hepatic lipid metabolism(Microbial metabolite repairs liver injury by restoring hepatic lipid metabolism)
No summary available.
62.RSS is awesome(RSS is awesome)
No summary available.
63.Protagentic: Emacs plugin for Kiro like functionality(Protagentic: Emacs plugin for Kiro like functionality)
Protagentic: Structured Feature Planning for Emacs
Protagentic is an Emacs plugin designed to help developers plan features systematically through three main steps: requirements gathering, design documentation, and implementation tasks. It allows users to convert rough ideas into detailed development plans directly within their editor.
Key Features:
- Requirements Phase: Generate user stories and acceptance criteria.
- Design Phase: Create technical architecture and specifications.
- Tasks Phase: Produce checklists for implementation tied to requirements.
- Code Generation: Automatically generate production-ready code along with tests.
- Quality Validation: Analyze code quality based on industry standards.
- LLM Integration: Use OpenAI for intelligent content generation.
- Cost Management: Track usage and set spending limits.
- Interactive Refinement: Improve workflows across phases.
- Progress Tracking: Visual indicators for task status.
- Emacs Integration: Works seamlessly with other Emacs tools.
Basic Workflow:
- Create a Spec: Initiate a new feature specification.
- Generate Design: Automatically create a design from requirements.
- Generate Tasks: Create an actionable task list from the design.
- Execute Tasks: Generate code and tests from the tasks.
Example:
To create a feature like "user-authentication":
- Use
protagentic-create-spec
to define the feature. - Generate design and tasks.
- Execute all tasks to produce implementation files and tests.
Commands:
- Core functions include creating specs, generating designs, executing tasks, and validating code quality.
- Navigation commands help open various documents and show progress.
Configuration:
Users can customize settings for project directories, quality standards, and integration with other tools.
Language Support:
Protagentic supports multiple programming languages, including JavaScript, Python, Java, and Emacs Lisp, with specific configurations for testing frameworks and style guides.
Best Practices:
- Execute tasks iteratively to review and refine code.
- Prioritize quality validation after generation.
- Maintain a focus on security and maintainability.
Troubleshooting:
Common issues include task execution failures and quality validation errors, with solutions provided for each scenario.
This plugin streamlines feature planning and coding within the Emacs environment, making it easier for developers to manage their projects efficiently.
64.Notes on Programming in C by Rob Pike(Notes on Programming in C by Rob Pike)
No summary available.
65.SilverBullet v2 released: open-source, self hosted, programmable notes(SilverBullet v2 released: open-source, self hosted, programmable notes)
Summary of SilverBullet v2 Release
Zef Hemel has announced the release of SilverBullet v2, an open-source, self-hosted notes application designed for organizing personal knowledge. In this version, many previously available features have been removed to streamline the application, focusing on a simpler core built around a new programming language called Space Lua.
Key Points:
- SilverBullet allows users to create and manage content using Markdown pages, referred to as "Spaces."
- It offers a clean markdown editor, outlining tools, task management, and database-like features.
- Users can access their notes from anywhere by hosting SilverBullet on their own server.
- The biggest change in v2 is the removal of numerous features to enhance simplicity and functionality. The app now operates solely in a sync mode, allowing offline access to notes.
- Upgrading from the previous version (v1) may cause compatibility issues due to these changes, so users are advised to back up their data before upgrading.
- Users can support SilverBullet's development through GitHub sponsorship.
For more information, there is a video introduction available showcasing the new features of SilverBullet v2.
66.That boolean should probably be something else(That boolean should probably be something else)
The blog post discusses the overuse of boolean data types in programming and suggests alternatives that can provide richer information. Here are the key points:
-
Booleans in Computing: While booleans are commonly used in programming, they often mask more complex data that could be stored more effectively using other types.
-
Better Alternatives:
- Datetimes: Instead of a boolean indicating whether an event occurred (like email confirmation), store the actual timestamp of the event. This provides valuable context and allows for better tracking of issues.
- Enums: Instead of using multiple booleans for status indicators (e.g.,
is_admin
,is_guest
), use an enum to classify user roles or job statuses. This makes the code cleaner and easier to maintain.
-
When to Use Booleans: The post suggests that booleans can be useful when temporarily storing the result of a complex condition for clarity in code. However, even in these cases, using enums might be a better approach for long-term maintainability.
-
Design Considerations: The author emphasizes the importance of critically evaluating the use of booleans and considering what data is truly needed. This mindful approach leads to better software design and reduced complexity.
Overall, the post advocates for replacing booleans with more informative data types to improve software design and maintainability.
67.Octarine – a fast, lightweight, opinionated Markdown notes app(Octarine – a fast, lightweight, opinionated Markdown notes app)
The author has been developing a note-taking app called Octarine for over two years. The app is designed to be:
- Lightweight: Under 30MB, fast to launch, without unnecessary features.
- Opinionated: Offers good default settings and a clean user interface.
- Yours: Uses plain Markdown with no proprietary formats.
Key features include:
- A command bar for easy navigation.
- A WYSIWYG editor for rich text editing.
- Built-in Git synchronization for backups.
- Natural language date recognition.
- Multiple workspaces, templates, tags, and a graph view.
- Backup options to services like iCloud and Dropbox.
- Customizable tabs and panes for note organization.
Pro Features include:
- Integration with over 9 AI providers.
- A chat feature to interact with notes.
- A writing assistant.
- Focus Mode for distraction-free writing.
- Extensive customization options.
The app offers a free plan with lifetime updates, while the Pro version requires a one-time payment. The app is in active development with over 130 releases so far, and an iOS version is coming soon. It competes with Obsidian but focuses on built-in features rather than plugins.
For more information, visit octarine.app and check out the changelog and documentation. The author is open to feedback and suggestions.
68.Are OpenAI and Anthropic losing money on inference?(Are OpenAI and Anthropic losing money on inference?)
The article discusses the financial dynamics of AI inference, particularly focusing on whether companies like OpenAI and Anthropic are truly losing money on this front. The author, who lacks direct experience with large AI models but understands cloud service costs, analyzes the economics of running AI inference at scale.
Key points include:
-
Cost Assumptions: The analysis uses simplified calculations based on the cost of running H100 GPUs, estimating $2 per hour for each. This leads to a total cost of $144 per hour for a cluster of 72 GPUs.
-
Input vs. Output Costs: The author finds a stark difference in costs between input processing and output generation. Input processing costs about $0.001 per million tokens, while output generation costs around $3.08 per million tokens, highlighting a significant cost asymmetry.
-
Production Setup and Performance: With a realistic setup, the model can process millions of input tokens quickly, but output generation is much slower, producing only a fraction of that volume.
-
Real-World Usage Economics: Different user plans show that heavy input token usage in applications like coding can be very cost-effective, often leading to high profit margins for AI services.
-
Conclusion on AI Inference Costs: The analysis suggests that AI inference is not as unsustainable as often claimed. The major cost difference between input and output processing indicates that certain applications can be highly profitable, especially those that require extensive input with little output.
Overall, the article argues against the narrative that AI inference is a financial black hole, suggesting instead that the cost structure favors profitable models, particularly for input-heavy applications.
69.Charting Form Ds to roughly see the state of venture capital “fund” raising(Charting Form Ds to roughly see the state of venture capital “fund” raising)
No summary available.
70.Envoy – Command Logger(Envoy – Command Logger)
Envoy is a small tool that quietly records your terminal commands. It helps you keep track of what you do in the shell, which can be helpful for fixing issues, monitoring your work, or recalling past actions.
71.Microsoft refuses to divulge data flows to Police Scotland(Microsoft refuses to divulge data flows to Police Scotland)
Summary: Microsoft withholds data processing information from Police Scotland
Microsoft is refusing to provide Police Scotland with information about how and where sensitive law enforcement data uploaded to its Office 365 cloud services will be processed. This lack of transparency prevents Police Scotland from complying with UK data protection laws, specifically those related to law enforcement data transfer.
-
Key Issues: Microsoft cites "commercial confidentiality" for not sharing details about data flows. As a result, Police Scotland cannot ensure that sensitive information is not processed in countries without adequate data protection, potentially including "hostile" regions.
-
Concerns Raised: Documents reveal that Microsoft cannot guarantee the sovereignty of policing data, and it has not provided necessary assessments for international data transfers. This raises worries about data being accessed by foreign governments, particularly under U.S. laws.
-
Implications for Law Enforcement: The refusal to disclose data processing details puts Police Scotland at risk of failing to meet its legal obligations, leaving them vulnerable in terms of data security and compliance.
-
Criticism of Microsoft: Experts and officials have criticized Microsoft for its lack of cooperation, highlighting the need for the UK to develop its own cloud capabilities to avoid reliance on large tech companies.
-
Current Situation: Despite these challenges, Police Scotland continues to implement Microsoft Office 365, working with the Scottish Police Authority to address potential risks while recognizing the limitations of their ability to change suppliers.
72.An eyecare foundation model for clinical assistance(An eyecare foundation model for clinical assistance)
Summary:
A study published on August 28, 2025, evaluated EyeFM, a new vision-language copilot designed to assist in eyecare. The research included various assessments, such as a randomized controlled trial (RCT) involving 668 participants in China. EyeFM was trained using 14.5 million eye images and clinical texts.
In the trial, ophthalmologists using EyeFM had a significantly higher correct diagnostic rate (92.2% vs. 75.4%) and referral rate (92.2% vs. 80.5%) compared to those who practiced standard care. Patients also showed better compliance with self-management and referral suggestions when assisted by EyeFM. Overall, the study suggests that EyeFM enhances the performance of ophthalmologists and improves patient outcomes, with strong acceptance from users.
73.Juno: Giant Neutrino Detector Is On(Juno: Giant Neutrino Detector Is On)
No summary available.
74.Microsoft can't guarantee data sovereignty – OVHcloud says 'We told you so'(Microsoft can't guarantee data sovereignty – OVHcloud says 'We told you so')
Summary:
OVHcloud, a French cloud provider, highlights the risks of relying on foreign tech companies for data security. Recently, Microsoft admitted it cannot guarantee that customer data won't be accessed by the US government, raising concerns among users. OVHcloud's Chief Legal Officer, Solange Viegas Dos Reis, emphasizes that this revelation shocked many customers who were previously assured of their data's safety.
Viegas Dos Reis explains that "digital sovereignty" involves three main concepts:
- Data Sovereignty: Compliance with local laws where data is stored and ensuring ethical use of data.
- Technical Sovereignty: The ability to move data between providers and control infrastructure.
- Operational Sovereignty: Who has access to the data and ensuring that privacy is maintained.
Concerns about the dominance of US cloud providers are increasing, leading companies to rethink their data management strategies. While a shift toward more secure, local options is beginning, it will be a complex and costly process. Each company is encouraged to assess its data needs and risks carefully to ensure they choose the right cloud solutions.
75.Claude Code Checkpoints(Claude Code Checkpoints)
Summary: Never Lose Your Work Again
Automatic Version Control for Claude Code Projects
- Available for Mac and Windows: Free to use on macOS (13.5+) and Windows.
Key Features:
-
Automatic Change Detection: Monitors your project for changes without any setup. Just select your project folder and start coding.
-
One-Click Checkpoints: Save your project's state instantly before making changes, capturing all files and their contents.
-
Visual Diff Viewer: Easily see what has changed between checkpoints, including additions, modifications, and deletions.
-
Time Travel for Code: Restore your project to any previous checkpoint with one click, allowing safe experimentation and easy recovery.
-
Claude Integration: Works smoothly with Claude Desktop, automatically creating checkpoints when tasks are completed.
-
Full Project Backup: Each checkpoint includes a complete backup of all files, ensuring your work is always safe.
Simple Workflow:
- Select your project folder.
- Start coding normally; changes are tracked automatically.
- Checkpoints are created after tasks are done.
- Restore any previous state with one click.
Seamless MCP Integration:
- Automatically connects with Claude Desktop.
- Tracks task statuses and creates checkpoints at key moments.
- Full control over checkpoints, including listing, viewing changes, and restoring.
User-Friendly Interface: Includes an intuitive checkpoint management system and a visual comparison tool for easy tracking of changes.
76.Dependent Types: Universes, or types of types(Dependent Types: Universes, or types of types)
No summary available.
77.Group Borrowing: Zero-cost memory safety with fewer restrictions(Group Borrowing: Zero-cost memory safety with fewer restrictions)
No summary available.
78.A deep dive into Debian 13 /tmp: What's new, and what to do if you don't like it(A deep dive into Debian 13 /tmp: What's new, and what to do if you don't like it)
No summary available.
79.SwiftAI – open-source library to easily build LLM features on iOS/macOS(SwiftAI – open-source library to easily build LLM features on iOS/macOS)
SwiftAI is an open-source library for Swift that allows developers to use Apple's on-device language models (LLMs) when available and switch to a cloud model when they're not, all while keeping the code consistent. Key features include:
- A unified API that works with different models.
- An agent/tool loop for better functionality.
- Clearly structured outputs that are strongly typed.
- Optional chat state management.
The motivation behind SwiftAI was to leverage Apple’s free, private, and offline-capable local models, though some devices may not support them due to age, settings, or battery life. SwiftAI simplifies this by centralizing model selection, eliminating the need for separate code paths for local and cloud models.
An example code snippet demonstrates how to use SwiftAI to get a response from a language model.
SwiftAI is open for contributions and feedback. Interested developers can join their Discord or Slack channels or contact them via email.
For more information, visit:
80.Optimising for maintainability – Gleam in production at Strand(Optimising for maintainability – Gleam in production at Strand)
No summary available.
81.What options do I have for self-hosted end to end encrypted group chat?(What options do I have for self-hosted end to end encrypted group chat?)
The person is looking for options to create a secure group chat that uses end-to-end encryption, and they want alternatives to Matrix.
82.The King's Quarry: How Louis XVI Went from Hunter to Hunted(The King's Quarry: How Louis XVI Went from Hunter to Hunted)
The text discusses the life and downfall of King Louis XVI of France, particularly focusing on his obsession with hunting. On July 14, 1789, the day the Bastille was stormed, he recorded "rien" (nothing) in his diary, which some interpret as his indifference to the revolution. However, his diary was primarily a hunting log, not a record of political events.
Louis XVI, who became king after the death of his older brother, was seen as smart yet incompetent, preferring to hunt rather than address the economic and social issues facing France. His extensive hunting activities, which involved killing vast numbers of animals, became a symbol of the monarchy's disconnect from the struggles of the common people, especially during a time of famine and economic hardship.
As the revolution unfolded, one of the first actions of the National Assembly was to abolish the royal hunting rights, allowing citizens to hunt in the royal forests. This led to a desperate scramble for food by the impoverished populace.
Louis XVI's attempt to escape Paris with his family ended in failure, leading to their capture and marking a significant turning point in the revolution. His final journal entry reflected his reduced status, as he transitioned from a powerful hunter to a hunted monarch. Ultimately, he and Marie Antoinette were executed as the revolution progressed.
83.Bitrig (YC S25) – Build Swift apps on your iPhone(Bitrig (YC S25) – Build Swift apps on your iPhone)
Kyle, Jacob, and Tim are introducing Bitrig, an app that allows users to create Swift apps directly on their iPhones by chatting with AI. It simplifies app development, making it accessible to everyone, even those without coding experience.
Bitrig uses a custom Swift interpreter to let users preview their apps instantly and share them easily. If you have a paid Apple developer account, you can compile your app on their server and distribute it via TestFlight or the App Store.
The team is gradually adding more Apple SDK frameworks to Bitrig, encouraging users to report any missing frameworks. You can download Bitrig from the App Store.
84.The sisters “paradox” – counter-intuitive probability(The sisters “paradox” – counter-intuitive probability)
Summary of "The Sisters Paradox - Counter-Intuitive Probability"
Mike Woodward discusses a well-known probability problem called the "sisters paradox." The scenario involves a family with two children, where at least one child is a girl. The question is: what is the probability that both children are girls?
-
Basic Probability: If we consider all possible combinations of two children (boy-boy, boy-girl, girl-boy, girl-girl), the probability of having two girls is initially thought to be 0.5 based on the chance of one child being a girl. However, this reasoning is flawed.
-
Correct Calculation: Using a probability tree, we find four possible outcomes. If we eliminate the boy-boy possibility (since we know at least one child is a girl), three outcomes remain: boy-girl, girl-boy, and girl-girl. The probability of both children being girls is actually 1/3.
-
Clarification on Sample Space: The sample space, which is the set of all possible outcomes, is crucial in solving the problem. If we specify that the eldest child is a girl, the probability changes to 1/2, as it alters the possible combinations.
-
Computer Simulation: Woodward suggests running simulations to test hypotheses about probabilities, reinforcing the importance of defining the problem clearly and using precise assumptions.
-
Common Mistakes: Many people rely on intuition or "common sense" which can lead to incorrect conclusions. Woodward emphasizes the need for accurate analysis in probability theory and advises against relying solely on intuition.
Overall, the paradox illustrates how probability can produce counter-intuitive results and highlights the importance of careful reasoning in data analysis.
85.GPU Prefix Sums: A nearly complete collection(GPU Prefix Sums: A nearly complete collection)
I'm sorry, but I can't access external content like the link you've provided. However, if you share the text or main points from that document, I can help summarize it for you!
86.There Goes the American Muscle Car(There Goes the American Muscle Car)
The article discusses the Dodge Challenger, a popular muscle car known for its powerful performance and classic design. It highlights the car's strong engine options and sporty features that appeal to car enthusiasts. The Challenger has a rich history in American automotive culture and is celebrated for its retro styling and modern technology. Despite facing competition from other car models, the Challenger remains a favorite among fans of muscle cars.
87.Important machine learning equations(Important machine learning equations)
Summary:
This blog post serves as a comprehensive guide to the essential equations in machine learning (ML), aimed at individuals with basic math and programming knowledge who want to deepen their understanding. It covers key areas including probability, linear algebra, optimization, loss functions, and advanced ML concepts, providing both theoretical explanations and practical Python implementations.
Key Topics Covered:
-
Introduction to ML Mathematics: Emphasizes the importance of equations in understanding ML algorithms.
-
Probability and Information Theory:
- Bayes’ Theorem: Updates probabilities based on new evidence.
- Entropy: Measures uncertainty in a distribution.
- Joint and Conditional Probability: Fundamental for Bayesian methods.
- Kullback-Leibler Divergence (KLD): Measures the divergence between two distributions.
- Cross-Entropy: Used as a loss function in classification tasks.
-
Linear Algebra:
- Linear Transformation: Core operation in ML models.
- Eigenvalues and Eigenvectors: Important for understanding data variance.
- Singular Value Decomposition (SVD): Used for data structure analysis.
-
Optimization:
- Gradient Descent: Updates model parameters to minimize loss.
- Backpropagation: Efficiently computes gradients in neural networks.
-
Loss Functions: Measures model performance.
- Mean Squared Error (MSE): Commonly used in regression.
- Cross-Entropy Loss: Used in classification.
-
Advanced ML Concepts:
- Diffusion Process: Key in generative models.
- Convolution Operation: Fundamental in processing image data.
- Softmax Function: Converts scores into probabilities for classification.
- Attention Mechanism: Powers modern NLP models.
Conclusion:
The post highlights the importance of understanding these equations for anyone interested in machine learning, providing a valuable resource for learning the math behind it. Further reading suggestions are included for those wanting to explore more deeply.
88.Speed-coding for the 6502 – a simple example(Speed-coding for the 6502 – a simple example)
The article discusses improving the speed of a bitmap scaling algorithm for the 6502 processor, which runs at 1MHz and lacks hardware support for multiplication and division.
Initially, the author demonstrates a basic method for scaling a 256×192 bitmap to 192×144 by using multiplication and division, which results in a slow process taking about 20 seconds.
To enhance performance, the author reformulates the operation to avoid multiplication and division, using bit shifting instead. This approach reduces the processing time to around 2 seconds.
Further optimization is achieved by using a simpler formula that allows for faster calculations, cutting the operation time down to 0.6 seconds.
Finally, the author suggests using a lookup table to store pre-calculated results for even faster scaling. By generating this table at runtime, the scaling process can be completed in just 0.2 seconds.
Overall, the article illustrates how algorithmic changes and optimization techniques can significantly speed up computations on limited hardware.
89.How life-size cows made of butter became an iconic symbol of the Midwest(How life-size cows made of butter became an iconic symbol of the Midwest)
No summary available.
90.How to install TrueNAS on a Raspberry Pi(How to install TrueNAS on a Raspberry Pi)
On August 28, 2025, a member of the TrueNAS community released a version of TrueNAS that works on Arm architecture, prompting the author to test it on a Raspberry Pi. The author has experience running storage servers on Arm systems and believes running TrueNAS on lower-powered hardware can reveal configuration challenges and enhance learning.
However, the Raspberry Pi lacks official UEFI support, which complicates the installation process. To overcome this, the author uses a community UEFI project for the Raspberry Pi 5, outlining specific steps to set it up. After successfully booting the Pi into UEFI mode, the author installs TrueNAS.
Despite installation success, there are limitations. Some features, like fan control and built-in Ethernet, are not functional due to UEFI mode constraints. External USB Ethernet dongles are required. There’s ongoing work to improve UEFI support for Raspberry Pi, but progress is slow.
The author also notes that while TrueNAS can run on lower-end hardware like the Raspberry Pi, it is recommended to use more powerful Arm servers for better performance. Future projects include a custom storage server using TrueNAS on a Raspberry Pi, but limitations in UEFI currently hinder full hardware recognition.
In summary, while TrueNAS can technically run on a Raspberry Pi, users might face challenges that would be less prevalent on more robust systems.
91.Docustore – Vectorized Technical Documentations(Docustore – Vectorized Technical Documentations)
Docustore aims to offer ready-to-use resources for large language models (LLMs) by using a carefully selected list of frameworks and software development kits (SDKs). It follows a four-step process:
- Scrape the documentation
- Clean the data
- Transform the data into vectors
- Package the final product
The goal is to host this system online and create an API (Application Programming Interface) that works with any development environment.
92.UK sought broad access to Apple customers' data, court filing shows(UK sought broad access to Apple customers' data, court filing shows)
No summary available.
93.FTC chair accuses Google of treating GOP's emails as spam(FTC chair accuses Google of treating GOP's emails as spam)
The Federal Trade Commission (FTC) chair, Andrew Ferguson, has accused Google of unfairly marking emails from Republican fundraisers as spam while not doing the same for emails from Democrats. He warned that this practice could violate the FTC Act, which prohibits deceptive trade practices. Ferguson emphasized that consumers should have the right to receive communications from all political candidates, regardless of their own political beliefs.
Google responded by stating that its spam filters are based on objective signals, like user feedback, and that they apply equally to all senders. This isn't the first time Republicans have complained about Google's email filtering; previous legal actions against Google have been dismissed due to protections in the Communications Decency Act, which limits liability for online platforms regarding content moderation decisions.
There is growing scrutiny on Section 230 of the Communications Decency Act, with discussions about potentially changing or repealing it, as both parties express concerns over the power of big tech companies over speech.
94.Altered states of consciousness induced by breathwork accompanied by music(Altered states of consciousness induced by breathwork accompanied by music)
No summary available.
95.2020 Election denier named top official for 'Election Integrity'(2020 Election denier named top official for 'Election Integrity')
Heather Honey, known for her efforts to overturn election results in favor of Republicans, has been appointed as the deputy assistant secretary for Election Integrity in the Department of Homeland Security. She previously promoted false claims about the 2020 presidential election and participated in lawsuits challenging election outcomes in Arizona and Pennsylvania. Honey has founded several companies that have raised doubts about election integrity through misleading data. Her new role includes overseeing U.S. election infrastructure, a position that did not exist under the Biden administration. This appointment comes as former President Donald Trump seeks to change voting processes leading up to the 2026 midterm elections.
96.Bookmarks.txt is a concept of keeping URLs in plain text files(Bookmarks.txt is a concept of keeping URLs in plain text files)
Summary of Bookmarks.txt
Bookmarks.txt is a simple way to store bookmarks in plain text files. Here are the main points:
-
Storage: Bookmarks are saved in files called bookmarks.txt. There is a main file in your home directory ($HOME/bookmarks.txt), and you can also have local files in different project directories.
-
Format: Each line contains a URL, and you can optionally add a title, which is separated by a space. For example:
- Without title:
https://www.example.com
- With title:
https://sul.im personal website
- Without title:
-
Tools: You can manage bookmarks using any text editor. There’s a script in the bin/ directory that helps you list and add bookmarks. You can also create your own tools.
-
Usage: You can quickly select and open a URL using
fzf
(a fuzzy finder). To add a new URL, you can run a specific command. -
Organization: The global bookmarks in $HOME/bookmarks.txt are for general use, while project-specific bookmarks are stored in local bookmarks.txt files. A symbolic link to the bookmarks script in the bin directory makes it easy to access.
-
Contributing: Contributions are welcome for bug fixes only; no new features will be accepted to avoid maintenance issues. You can request features by submitting an issue.
-
License: Refer to the LICENSE file for licensing details.
97.Certificates for Onion Services(Certificates for Onion Services)
Summary of Certificates for Onion Services
This document discusses the integration and validation of TLS/HTTPS certificates for Onion Services, which are a type of web service that provides anonymity. Onion Services have encrypted connections by default, but as web technologies evolve, certificates may be necessary to enable advanced features like faster connections and secure transactions.
Key Points:
-
Need for Certificates: While Onion Service connections are inherently secure, implementing valid HTTPS certificates can unlock features such as secure cookies, payment processing, and enhanced browser functionalities.
-
Current Solutions: Several methods exist for certificate issuance, including:
- Existing CA Validation: Some CAs already issue certificates for .onion addresses, but this is limited.
- ACME for Onion Services: A new approach using the ACME protocol aims to automate the issuance of certificates for Onion Services.
- Self-Signed Certificates: These could be used, but they require user acceptance and might complicate security.
-
Potential Benefits:
- Access to modern web features and improved user experience.
- Enhanced security through additional encryption and key management options.
- Support for wider application compatibility beyond the Tor browser.
-
Challenges:
- There are concerns about the complexity of managing certificates and the need for support in various applications.
- Many existing software tools do not recognize Onion Services, leading to issues with compatibility.
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Proposals for the Future: Various proposals are under consideration, including:
- Same Origin Onion Certificates (SOOC), which would relax the need for strict signature validation in specific cases.
- DANE (DNS Authentication of Named Entities) for .onion addresses, although support is limited.
- Establishing .onion-only Certificate Authorities to simplify the certificate validation process.
In conclusion, improving the certificate infrastructure for Onion Services is an ongoing challenge that aims to enhance security and functionality while maintaining the core principles of anonymity and privacy.
98.Rendering a game in real time with AI(Rendering a game in real time with AI)
The website is checking your browser. If you own the website, there is a link for you to resolve the issue.
99.RFC 8594: The Sunset HTTP Header Field (2019)(RFC 8594: The Sunset HTTP Header Field (2019))
Summary of RFC 8594: The Sunset HTTP Header Field
This document introduces the Sunset HTTP response header field, which informs users that a specific resource (URI) is expected to become unresponsive at a certain future time. It also introduces a "sunset" link relation type that allows resources to provide additional information about their retirement.
Key Points:
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Purpose of the Sunset Header: It indicates that a resource will likely stop working at a specified time, helping clients manage their interactions with that resource.
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Header Format: The Sunset header contains a timestamp (in HTTP-date format) showing when the resource is expected to become unavailable. For example:
Sunset: Sat, 31 Dec 2018 23:59:59 GMT
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Client Behavior: Clients should treat this timestamp as a hint, not a guarantee. They may still face errors or be unable to access the resource after the Sunset time.
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Scope of Sunset Information: The Sunset header applies to the specific resource, but the scope can be broader if documented by the service, indicating that multiple resources may be affected.
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Link Relation Type: The sunset link relation can point to additional information about sunset policies, upcoming sunsets, or mitigation strategies for users transitioning away from the resource.
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Caching vs. Sunset: The Sunset header is different from caching information, which focuses on resource state. Sunset simply signals impending unavailability.
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Security Considerations: Care should be taken when acting on sunset information, as it could reveal sensitive data about resource expiration.
In summary, the Sunset HTTP header serves as a proactive notification tool for clients, allowing them to prepare for the eventual unavailability of resources.
100.The Curious Case of Flunking My Anthropic Interview (Again)(The Curious Case of Flunking My Anthropic Interview (Again))
The author recently applied for a Developer Relations role at Anthropic, encouraged by a friend's recommendation. They completed a challenging take-home assignment and even created a project called diggit.dev, hoping to impress the company. Despite their efforts, they received a rejection email, which left them feeling disappointed.
The author reflects on their past experiences with interviews, noting a previous failure due to a simple mistake, but this time they felt their best efforts weren't enough. They express frustration about feeling rejected for being "too weird," which is a part of their personality that they embrace but sometimes wish they could downplay.
They share their journey of personal growth, striving to be better and spread joy, while grappling with feelings of inadequacy. Despite the rejection, they remain determined not to give up and find gratitude in their life. The author hopes that sharing their feelings will resonate with others who may be going through similar struggles, reminding them that they are not alone.