1. Nightshade: An offensive tool for artists against AI art generators
Total comment counts : 71
Summary
The article discusses the development of a tool called Nightshade, which transforms images into “poison” samples to deter model trainers from using unauthorized data for training generative AI models. Unlike opt-out lists, Nightshade imposes a cost on trainers who scrape and train on unlicensed data. It distorts feature representations in AI image models, making them learn unpredictable behaviors. Nightshade works similarly to Glaze but is an offensive tool designed to disrupt models that scrape images without consent. The effects of Nightshade are robust to image alterations, and the tool does not rely on network connectivity. Its primary goal is to make a positive impact on the world and is not designed for profit. The article also mentions the coexistence of Nightshade with Glaze. However, Nightshade does not provide mimicry protection like Glaze, so caution is advised when using it alongside artwork.
Top 1 Comment Summary
I’m sorry, but I am unable to access or summarize specific articles or links. However, if you provide me with information or specific text, I would be happy to help summarize it for you.
Top 2 Comment Summary
The article discusses an artifact introduced by a new technology that many artists would likely find unacceptable. The technology is said to barely work with older training processes and not at all with newer ones. It is also mentioned that mitigating against the artifact would not be difficult. The author questions the effectiveness of the technology’s previous work and suggests that this may be a case of overhyping an academically interesting but impractical result. The article includes additional information from a Reddit user regarding the technology.
2. Collision Detection (2015)
Total comment counts : 19
Summary
This article discusses the algorithms behind collision detection in games and user interfaces. It explains how objects, such as baseball bats, zombies, and buttons, collide with each other using basic shapes like circles, rectangles, and lines. The purpose of the book is to teach these collision principles with minimal math, providing readable examples and interactive demonstrations. The article also mentions that the book covers collisions between points, circles, rectangles, lines, polygons, and triangles, with source code available on GitHub. It advises that the examples may not work well on mobile devices and encourages readers to report any issues or suggestions for improvement. The article concludes by inviting readers to explore the table of contents and begin writing code for collision detection.
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The author of the article has been using bsps, quadtrees, and grid spatial indexing data structures in game development and graphics for years. Recently, they discovered that quadtrees and bsps have a failure case when the aabb’s (axis-aligned bounding boxes) within are at harmonic intervals of the space division, or very large. This results in the data being put into every single child node, even with only a few objects. This caused the author to run out of 32GB of RAM. They switched to using an rtree instead, which solved the problem.
Top 2 Comment Summary
The article discusses a video about collision detection in 3D, specifically in the game Quake. The video explains how collision detection was achieved using a technique that can detect the intersection point between a moving bounding box and a hull defined as a BSP tree. While this method is considered limited compared to newer methods, it was effective and efficient for the hardware available at that time. The video provides a robust and fast implementation of this technique.
3. The Bun Shell
Total comment counts : 50
Summary
The article discusses the challenges of running shell scripts in JavaScript and introduces a solution called Bun Shell. It explains that the differences in syntax and commands across different shell environments make it difficult to run shell scripts in JavaScript. Currently, the solution is to rely on the community to polyfill missing commands with JavaScript implementations. However, this method is not efficient and can be expensive when running multiple commands. Bun Shell, on the other hand, is a new experimental embedded language and interpreter in Bun that allows for running cross-platform shell scripts in JavaScript and TypeScript. It provides various features such as using JavaScript variables in shell scripts, redirecting stdout to buffers or files, piping stdout to other commands, and using Response as stdin. The Bun Shell supports Windows, macOS, and Linux and is designed to be a drop-in replacement for simple shell scripts. It can be used within Bun or as a standalone shell script interpreter.
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The article discusses the implementation of common commands and features in a new shell. However, it raises concerns about the compatibility of this shell with existing shells and coreutils implementations. The author questions whether the new shell is POSIX-compliant or compatible with Bourne shell, and whether it supports GNU extensions. The article also suggests that using this new shell might not be suitable for replacing a Bourne-compatible shell like ZShell in most contexts. However, it acknowledges that using this shell in the JavaScript ecosystem could be useful due to its compatibility and the ability to use it in JS scripts.
Top 2 Comment Summary
The article discusses how Love that bun focuses on building useful things rather than listening to others’ opinions about what they should or shouldn’t build. They prioritize productivity over speculation.
4. Common Lisp’s block / return-from and unwind-protect
Total comment counts : 3
Summary
The article discusses non-local control flow in Common Lisp. The author highlights the use of BLOCK/RETURN-FROM and UNWIND-PROTECT as elegant solutions for non-local exits in the language. They explain how BLOCK/RETURN-FROM allows for early returns from functions and breaking out of loops, while UNWIND-PROTECT functions as a try/finally block. The article emphasizes that Common Lisp provides a minimalistic and expressive system for non-local control flow.
Top 1 Comment Summary
The article discusses “block/return-from” and “catch/throw” as methods of control transfer in programming. These methods allow for transferring control from one block of code to another, either within the same scope or to an enclosing scope. If the transfer occurs through an “unwind-protect,” it triggers the activation of this mechanism.
Top 2 Comment Summary
The author is tempted to start another project using Lisp, as they have heard that it is a powerful language for building applications. They are seeking confirmation from others with recent experience in Lisp, particularly for web development, to determine if the effort put into Lisp really leads to faster code and better applications compared to other programming languages.
5. NASA regains contact with mini-helicopter on Mars
Total comment counts : 9
Summary
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Top 1 Comment Summary
The author considers being listed as a contributor to Ingenuity as one of the highlights of their software development career. They fixed a bug in a Python library, which earned them the GitHub Ingenuity badge. They also mention that it is a fun fact about themselves that some of their code is flying on Mars.
Top 2 Comment Summary
The article discusses how the Mars rover, Perseverance, is powered by Linux and may be the first of many Linux devices used by NASA on Mars. The rover uses a space hardened Power CPU and an older version of Yocto due to driver compatibility issues. When troubleshooting, the helicopter’s command line GNU utilities were used to debug and retrieve rover logs. It is also mentioned that Mars is now the second planet, after Linux, to use Linux more than Windows.
6. Shiyu discovery reveals East Asia’s advanced materials dating to 45,000 BCE
Total comment counts : 4
Summary
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Top 1 Comment Summary
The Levallois technique, a stone-age technology, has been discovered in India dating back 385,000 years ago. This suggests an early global spread of this technique.
Top 2 Comment Summary
The article discusses the importance of advanced material culture, rather than focusing solely on advanced materials. It emphasizes the significance of utilizing natural materials in the development of societies.
7. What Happened to David Graeber?
Total comment counts : 19
Summary
This article discusses the concept of inequality and its framing as a social problem. It questions the idea of what it would mean to eliminate inequality and suggests that debating it allows for tinkering with numbers and policies. The article also criticizes the assumption that “the state” is a singular entity and argues for a more neutral understanding of human freedoms and forms of domination. Overall, it explores the language and frameworks used in discussions about inequality.
Top 1 Comment Summary
The author is confused by an article’s argument that David Graeber is betraying anarchism by questioning the state and the concept of inequality. The author believes that these arguments are actually compatible with anarchism, particularly the kind that stems from anthropology. They view the author of the article as having a rigid definition of anarchism, seeing any deviation as a sign of liberal behavior or a radical shift in thought. The author acknowledges that Graeber may have hinted at a new angle in his later works, but suggests that any inconsistencies in his writing and behavior can simply be attributed to him being human rather than the ideal representative of anarchist ideology.
Top 2 Comment Summary
The author is praising the book “Debt” for its transformative impact on their understanding of money and macroeconomics. However, they found the book “On Kings” to be difficult to read due to its use of esoteric academic theory debates. The book “The Beginning of Everything” challenged traditional views on the emergence of states but was filled with conjecture and only concluded that things varied across different places and times. The author expresses sadness over the fact that there will not be any more books from the author being discussed.
8. Use Midnight Commander like a pro (2015)
Total comment counts : 26
Summary
This article is a guide to using Midnight Commander, a file manager based on Norton Commander for *nix systems. It highlights various shortcuts and functionalities that are often overlooked. The author recommends running MC in a modern and UTF-8 friendly terminal, and mentions a useful feature where MC can exit to its current directory. The article also introduces the concept of the Virtual File System, which allows browsing of archives and remote locations. The author suggests reading the manpages for more information and encourages readers to embrace the useful commands and forget the ones they don’t need.
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The article discusses the use of the file manager “mc” in the Unix command line. The author mentions that having their own copy of mc made them seem knowledgeable to their colleagues. One notable feature of mc is its ability to use “pop up menus” for commonly used commands, which can be configured globally or locally for specific folders. The author also mentions that using mc to view files instead of the “more” command helped them navigate codebases faster in the past when IDEs and modern version control systems were not as prevalent. The article concludes by mentioning a similar feature in the macOS file manager “Forklift” in its “Tools” section.
Top 2 Comment Summary
The author of the article discusses their use of mc (Midnight Commander), a file management tool, for various tasks. They feel embarrassed about relying on it so heavily, but they are proficient in other command-line tools like vi. Despite their embarrassment, they have been using mc since the late 90s and find it more convenient because it allows them to see more information. They also mention how mc has helped them clean up junk files created by other employees who made syntax errors or mistakes within their programs.
9. Show HN: Nutrient insights through your grocery receipts
Total comment counts : 25
Summary
The article is about a service that allows users to upload their grocery receipts in order to receive tips on making their diet more nutritious. The service uses AI technology to provide insights, but these insights may not always be accurate. The nutrient content classification provided is only a rough estimate. Users have the option to manually add items they don’t buy regularly, and can also add photos of their receipts. The service provides nutrient information on the items purchased.
Top 1 Comment Summary
The article recommends using a database like USDA’s Food Data Central to retrieve nutrition data instead of relying on ChatGPT. The writer briefly mentions working on a project to suggest a list of ingredients for optimal nutrition but no longer pursues it. The link provided leads to the USDA’s Food Data Central website.
Top 2 Comment Summary
The article discusses a prototype that helps users plan their meals by fetching recipes and ingredient lists based on their family’s macros and meals. The prototype is designed as an optimization problem, allowing users to minimize their shopping list or meal prep time. The article also includes a link to the prototype called planmyrecipes.com.
10. Boehm-Demers-Weiser conservative C/C++ Garbage Collector
Total comment counts : 15
Summary
The article discusses the Boehm-Demers-Weiser conservative garbage collector, which can be used as a garbage collecting replacement for C malloc or C++ new. The collector automatically recycles memory when it determines that it can no longer be accessed. It is used by programming language implementations that use C as intermediate code or want to interoperate with C libraries. The article provides instructions on how to obtain and build the collector, and mentions that it is not completely portable but has ports for various platforms. The collector uses a mark-sweep algorithm and supports incremental and generational collection.
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The author of the article discusses their experience using the Boehm-Demers-Weiser garbage collector (GC) for the jank Clojure dialect on LLVM with C++ interop. They explain that since jank is built primarily on persistent, immutable data structures, there are potentially many references to objects across multiple threads, leading to a lot of garbage being generated. The author initially tried using reference counting and RAII, but found that the GC was actually 2x faster in the benchmark they were optimizing. They mention that while there may be better performing GCs available, such as MMTK, the simplicity and speed of integrating the Boehm GC make it their preferred choice for their project.
Top 2 Comment Summary
The Boehm collector is praised for its ability to function in a language without runtime typing like C. It accomplishes this by making educated guesses about what is a pointer. Although pointers in C are essentially integers, they are distinct numbers, often large, and their valid set can be determined if malloc() is under control. Remarkably, this approach even applies to 32-bit architectures.