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2024-09-03

Is My Blue Your Blue?

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  • The "Is My Blue Your Blue?" test explores how individuals classify the color cyan, revealing subjective differences in color perception.
  • Factors such as monitor calibration, ambient lighting, and personal perception significantly influence the test's accuracy.
  • The test, created by a visual neuroscience expert, aims to entertain and provoke thought about the interplay between perception and language.

Greppability is an underrated code metric

  • Greppability, the ease of searching for code elements, is an important but often overlooked metric in code maintenance.
  • Key practices to enhance greppability include avoiding dynamic identifier construction, using consistent naming conventions across the stack, and preferring flat over nested structures.
  • These practices help prevent frustration and errors when navigating and maintaining unfamiliar codebases.

Reactions

  • Greppability, the ease of searching code using grep, is an underrated but valuable metric for code quality and consistency.
  • "Super Grep," a tool designed for enhanced pattern matching across various naming conventions, is now available on PyPI, offering a "super case insensitive" mode.
  • While IDEs (Integrated Development Environments) provide search functionalities, grep remains crucial, especially in large or unfamiliar codebases, ensuring ease of search and consistency across different languages.

The Art of Finishing

  • The author describes the "Hydra Project Effect," where solving one challenge in a project leads to new challenges, creating a cycle of unfinished work.
  • To break this cycle, the author suggests strategies such as defining "done" from the start, embracing Minimum Viable Product (MVP), time-boxing, and celebrating completions.
  • The focus is on building habits that increase the likelihood of completing projects, thus fostering real skill growth and reducing the mental weight of unfinished tasks.

Reactions

  • Reframe unfinished projects as opportunities for creative exploration and learning, rather than sources of pressure.
  • Embrace the process of tinkering and playing, which are crucial for personal and professional growth.
  • Set realistic goals and deadlines for some projects, while allowing others to remain open-ended to prioritize tasks effectively.

Web scraping with GPT-4o: powerful but expensive

  • The author explored using GPT-4o's new structured outputs feature to develop an AI-assisted web scraper, with promising initial results using Pydantic models.
  • Challenges included parsing complex tables and managing costs, with a two-day experiment costing $24, leading to efforts to clean up HTML strings to improve performance.
  • A demo was created using Streamlit, and the source code was shared on GitHub, with future plans to capture browser events and improve user experience.

Reactions

  • Web scraping with GPT-4o is effective but costly, prompting users to convert HTML to simpler formats like markdown to reduce expenses.
  • Tools such as Extractus, dom-to-semantic-markdown, Apify, and Firecrawl assist in this conversion, and user-assisted flows for generating XPaths are being explored.
  • Alternatives like browserbase.com provide solutions for running Chrome extensions on headless browsers, and using smaller, fine-tuned models or generating scraping code can enhance efficiency and lower costs.

IPMI

  • The author is transitioning their enterprise cloud to New Mexico, including purchasing a new server to replace an outdated one.
  • Modern servers, such as Dell PowerEdge and HP ProLiant, are essentially powerful computers with advanced management features like IPMI for remote access and management.
  • Security concerns with IPMI necessitate isolating it from untrusted networks, highlighting the importance of understanding the specific capabilities and limitations of server management systems.

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  • Intel is currently trailing AMD in both CPU and GPU performance, with the exception of the N100 series CPUs.
  • AMD CPUs are favored for their superior performance and cost-efficiency, while Intel CPUs are often used for direct replacements in existing setups.
  • Redfish is emerging as a more secure and user-friendly alternative to IPMI for server management.

Diffusion Is Spectral Autoregression

  • Diffusion models and autoregressive models share similarities, with diffusion models performing approximate autoregression in the frequency domain.
  • Diffusion models generate images from coarse to fine details, analyzed using spectral analysis, showing that natural image spectra follow a power law.
  • The corruption process in diffusion models filters out high-frequency information, making the generative process similar to autoregression in frequency space, suggesting potential future integration of both paradigms for multimodal data.

Reactions

  • The post discusses the connection between diffusion models and spectral autoregression, highlighting how diffusion can be viewed through the lens of autoregressive modeling.
  • It explores the frequency components of speech and how different frequencies are produced and perceived, suggesting potential applications in audio generation and modeling.
  • The conversation includes references to related research papers and ideas, such as using pink noise for diffusion models and the implications of phase in audio data.

Microsoft's 'Recall' feature can't be uninstalled after all

  • Windows 11 users cannot uninstall Microsoft's "Recall" feature, which takes constant screenshots of user behavior for easy retrieval of previous work.
  • A recent update mistakenly allowed Recall to be uninstalled, but Microsoft clarified this was a bug and is investigating privacy concerns.
  • Due to public backlash and cybersecurity concerns, Microsoft made Recall opt-in and delayed its release to October for Windows Insiders testers.

Reactions

  • Microsoft's 'Recall' feature, which cannot be uninstalled, has sparked user criticism and frustration over perceived complacency and dominance in the OS market.
  • Concerns include privacy, telemetry, and the future of Windows, especially as younger generations prefer Chromebooks and iPhones.
  • The debate centers on whether Microsoft's data-driven approach and AI integration will sustain its dominance or push users towards alternatives like Linux.

Steve Ballmer's incorrect binary search interview question

  • John Graham-Cumming's blog analyzes Steve Ballmer's binary search interview question, which involves guessing a number between 1 and 100 with varying payouts.
  • Contrary to Ballmer's claim that the game is unfavorable, the blog demonstrates that using a binary search strategy results in a positive expected value of $0.20 if numbers are chosen randomly.
  • The blog includes code to support this analysis and discusses potential misunderstandings in Ballmer's reasoning, with comments suggesting alternative strategies and interpretations.

Reactions

  • Steve Ballmer's binary search interview question has ignited debate over its effectiveness in evaluating technical skills.
  • An interviewee with payments experience was rejected for lacking real-time payments expertise, despite managing conflict well during the process.
  • Commenters criticized the interview tactics as indicative of a toxic culture and emphasized the importance of admitting knowledge gaps.

Playdate Game Zero Zero: Perfect Stop

  • "Zero Zero: Perfect Stop" is a train driving game where players control the train's throttle and brakes using a crank, aiming for precise stops at each station.
  • The game features multiple routes, including 1-stop, 3-stop, 5-stop, and Express routes, with global leaderboards and a Free Mode for casual play.
  • The game supports both English and Japanese, and includes a tutorial for new players, making it accessible to a wide audience.

Reactions

  • "Zero Zero: Perfect Stop" is a new game for the Playdate console, developed by Hunter Bridges, which has seen a recent increase in sales and interest.
  • The game uses a video-based approach with pre-rendered video to simulate a train-driving experience, inspired by the Fuji Kyuukou line in Yamanashi, Japan.
  • Discussions around the game include its technical implementation, privacy concerns regarding scoreboards, and comparisons to other train simulators and FMV (Full Motion Video) games.

Synchronizing pong to music with constrained optimization

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  • A new project synchronizes the classic game Pong to music using constrained optimization, creating a visually engaging experience.
  • Unlike previous efforts that manually sync to the song's beats per minute (BPM), this approach uses advanced techniques for a more dynamic visualization.
  • The project has sparked interest and discussions about potential applications, including reinforcement learning and rhythm-based gameplay similar to "Crypt of the NecroDancer" and "Cadence of Hyrule."

Economist Eugene Fama: 'Efficient markets is a hypothesis. It's not reality

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  • Economist Eugene Fama emphasizes that the Efficient Market Hypothesis (EMH) is a theoretical model, not a reflection of reality.
  • The article discusses the limitations and controversies surrounding EMH, highlighting that markets are not perfectly efficient but the hypothesis remains a useful framework.
  • Fama's interview underscores that while markets adjust quickly to information, they are influenced by various factors, including non-tangible values and cognitive biases, which prevent perfect efficiency.

Iranian writer is sentenced to 12 years after tweeting a dot at supreme leader

  • Iranian writer Hossein Shanbehzadeh has been sentenced to 12 years in prison for replying with a single dot to a tweet by Iran’s supreme leader, Ayatollah Ali Khamenei.
  • Shanbehzadeh was charged with pro-Israel propaganda, insulting Islamic sanctities, spreading lies online, and anti-regime propaganda, following his arrest in June 2024.
  • This case highlights a broader crackdown on dissent in Iran, with Shanbehzadeh's lawyer planning to appeal the verdict.

Reactions

  • An Iranian writer received a 12-year prison sentence for charges including pro-Israel propaganda, insulting Islamic sanctities, spreading lies online, and anti-regime propaganda.
  • The writer's lawyer intends to appeal, particularly against the pro-Israel accusation, amid claims of contact with Israeli intelligence and an arrest attempt while leaving Iran.
  • The article highlights media bias and the misleading nature of headlines, which suggested the sentence was solely for tweeting a dot at the supreme leader.

Why bother with argv[0]?

  • The post highlights the security risks associated with using argv[0] to represent a process's name in command lines across operating systems.
  • Historically intended to allow programs to behave differently based on invocation, argv[0] is now considered outdated and insecure, with potential to bypass security defenses and corrupt telemetry.
  • Recommendations include avoiding reliance on argv[0], improving detection of its manipulation in defensive software, and excluding it from command-line reports to mitigate security issues.

Reactions

  • The article discusses the use of argv[0] in programming, particularly its role in identifying how a program was called, which is crucial for tools like Busybox.
  • There is a debate on whether argv[0] should be set by the operating system (OS) rather than the programmer, with arguments about security and efficiency.
  • The discussion highlights the trade-offs between using argv[0], symlinks, and shebangs, especially in resource-constrained environments like embedded systems.

Wizardry Co-Creator Andrew Greenberg Has Passed Away

  • Andrew Greenberg, co-creator of the influential RPG Wizardry, has passed away, leaving a significant legacy in the gaming industry.
  • Wizardry, released in 1981, was one of the first RPGs for personal computers and had a notable impact, particularly in Japan; it was recently remastered by Digital Eclipse.
  • Greenberg's career also included work as a patent attorney and in renewable energy, and he is fondly remembered by the gaming community.

Reactions

  • Andrew Greenberg, co-creator of the influential game Wizardry, has passed away, leaving a significant legacy in the game development industry.
  • Discussions highlight the impact of Wizardry on the RPG genre, influencing major titles like Final Fantasy and Dragon Quest.
  • Users shared nostalgic memories of working with early gaming technology, such as Windows NT 4 and Voodoo 3DFX graphics cards, during the 1990s at Sir Tech Canada.

Open Mathematics Depository

  • The Open Mathematics Depository aims to provide open access to mathematical texts in PDF format that are either in the public domain or under an open license.
  • This project serves as an intermediary between large repositories like archive.org and subscription services, ensuring free access to valuable mathematical resources.
  • Contributions of public domain or open license mathematics PDFs are welcomed, with a current focus on English texts until curators for other languages are available.

Reactions

  • The Open Mathematics Depository on TuxFamily.org is being highlighted for its collection of Soviet-era mathematics books, which are known for their concise and dense content.
  • Users are discussing easier access to these resources through platforms like Archive.org and recommending their use alongside standard textbooks.
  • There is a call for teachers to recommend these books, noting that many are republished on Amazon India and by Dover Publications, making them more accessible and affordable.