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2024-08-19

Markov chains are funnier than LLMs

  • Markov chains are simple statistical models predicting the next word based on context, unlike complex Large Language Models (LLMs) which use advanced vector math.
  • LLMs, while accurate, often produce predictable and bland content, making them less effective for humor, which thrives on surprise and originality.
  • The discussion suggests that a new type of language model might be needed to generate genuinely humorous content, highlighting a current limitation in LLMs.

Reactions

  • The discussion highlights the humorous differences between Markov chains and modern Large Language Models (LLMs), with Markov chains generating more absurd and funny content compared to the more realistic outputs of LLMs.
  • Users shared personal experiences and projects where Markov chains were used to create amusing fake content, such as fake AWS blog posts and game patch notes, which were well-received for their unpredictability.
  • The post includes a series of jokes generated by Claude 3.5, an LLM, illustrating the contrast in humor styles between Markov chains and LLMs, with the former being more absurd and the latter more structured and less surprising.

Roblox is the biggest game in the world, but is unprofitable

  • Roblox, the world's largest game, boasts over 80 million daily users and 380 million monthly users but remains unprofitable despite its growth.
  • High costs, including app store fees (23%), developer payments (26%), infrastructure and safety (28%), and R&D (44%), contribute to its financial challenges.
  • To achieve profitability, Roblox aims to reduce app store fees, boost user spending, expand its advertising business, and introduce new features like messaging and voice calling.

Reactions

  • Roblox, despite being the largest game globally, remains unprofitable, raising questions about its financial strategies and market position.
  • Concerns from parents include the game's pay-to-win model, heavy advertising, and the presence of toxic adults, highlighting challenges in moderating online gaming environments.
  • Discussions suggest alternatives for children, such as purchasing other games or promoting healthier gaming habits, reflecting broader issues in the online gaming industry.

Google took three months to remove scam app that stole over $5M

Reactions

  • Google took three months to remove a scam app from the Play Store that stole over $5 million from users.
  • A woman is suing Google, claiming she trusted the platform to prevent such scams and lost $5 million after using the app for several months.
  • The case raises concerns about app store vetting processes and the balance of responsibility between tech platforms and users.

PgQueuer – Transform PostgreSQL into a Job Queue

  • PgQueuer is a minimalist and high-performance Python job queue library designed to work with PostgreSQL.
  • It utilizes PostgreSQL's LISTEN/NOTIFY feature for efficient job queue management.
  • This makes it a notable tool for developers seeking a lightweight and effective solution for job queuing in Python applications.

Reactions

  • PgQueuer is a high-performance job queue library for Python that leverages PostgreSQL's LISTEN/NOTIFY for efficient job management.
  • It uses SELECT FOR UPDATE SKIP LOCKED to ensure job handling and prevent message loss during crashes, making it robust and reliable.
  • Users compare PgQueuer with other systems like Celery, Graphile Worker, and Redis-based queues, noting its simplicity and efficiency, though some prefer dedicated solutions for higher throughput.

Mike Mageek is dead

  • Mike Magee, a prominent figure in IT journalism and founder of The Register and The Inquirer, passed away at 74.
  • Magee's career highlights include co-founding The Register in 1994 and later The Inquirer, which became profitable with minimal investment.
  • Beyond tech journalism, Magee had eclectic interests, including founding the "Arcane Magical Order of the Knights of Shambhala" and translating tantric texts.

Reactions

  • Mike Mageek, founder of The Register and The Inquirer, has passed away, leaving a significant legacy in tech journalism.
  • Known for his unique style and contributions, Mageek's career included memorable anecdotes and mentoring writers, shaping the tech news landscape.
  • Despite controversies, Mageek's impact on the tech industry is fondly remembered by many in the tech community.

Parsing protobuf at 2+GB/s: how I learned to love tail calls in C (2021)

  • A new feature in the Clang compiler, using [[clang::musttail]] or __attribute__((musttail)) attributes, guarantees tail calls in C, C++, and Objective-C, significantly enhancing performance.
  • By applying tail call optimization to protobuf parsing, a speed of over 2GB/s was achieved, more than doubling the previous record.
  • The main limitation is portability, as musttail is a nonstandard extension, but efforts are being made to address this with macros and other attributes.

Reactions

  • The article discusses the use of tail calls in C to achieve high-speed parsing of protobuf data, reaching speeds of over 2GB/s.
  • A proposal for a new C standard, "return goto (expression);", aims to simplify tail call implementation by ensuring local object lifetimes end, avoiding extensive escape analysis.
  • The discussion highlights the challenges and benefits of tail call optimization (TCO) in various programming languages and architectures, including C, Rust, and WebAssembly (WASM).

NASA acknowledges it cannot quantify risk of Starliner propulsion issues

  • NASA is unable to quantify the risk associated with propulsion issues on Boeing's Starliner, delaying the decision on whether to bring astronauts Butch Wilmore and Suni Williams back to Earth or extend their stay on the ISS.
  • Starliner, which has experienced thruster and helium leak problems, occupies a critical ISS docking spot and must vacate it before SpaceX's next Dragon mission on September 24.
  • Despite some thrusters recovering, NASA remains concerned about their reliability for the crucial deorbit burn and reentry, with a decision needed by late August.

Reactions

  • NASA acknowledges it cannot quantify the risk associated with Boeing's Starliner propulsion issues, emphasizing the need for multiple reliable providers in space missions.
  • The debate persists on whether to continue using Starliner for astronaut returns or rely solely on SpaceX's Dragon, highlighting the risks of depending on a single provider.
  • The situation underscores the importance of having diverse and dependable options to ensure the success and safety of space missions.

The gigantic and unregulated power plants in the cloud

  • A Dutch hacker exposed vulnerabilities by taking control of 4 million solar panel installations, revealing risks in the EU's energy infrastructure.
  • Centralized management of solar panels, often by companies outside Europe, poses a risk of simultaneous shutdowns, potentially collapsing the European electricity grid.
  • The EU's NIS2 directive and Cyber Resilience Act could improve security, but explicit regulations are needed to treat solar panel managers as energy companies, ensuring they are regulated like large power providers.

Reactions

  • The article highlights the security risks associated with the centralized management of solar panels, inverters, and other renewable energy sources via cloud services, making them susceptible to cyberattacks.
  • In the Netherlands, solar panels generate power equivalent to 25 medium-sized nuclear plants, but the actual yearly energy output is closer to 1.5 times that of an average nuclear plant.
  • The debate centers on whether nameplate capacity (the maximum output a system can produce) or actual output should be used to assess risk, emphasizing the need for better regulations and security practices to protect the grid.

FindMy Flipper – AirTag and SmartTag Emulator

  • The FindMy Flipper app enhances the FlipperZero's Bluetooth capabilities, enabling it to emulate Apple AirTag, Samsung SmartTag, and Tile Tracker.
  • Key features include tag emulation, customization of beacon broadcast intervals and transmit power, and efficient background operation to minimize battery usage.
  • The app allows cloning of existing tags, generation of OpenHaystack key pairs for Apple's FindMy network, and tracking of the FlipperZero, with detailed installation and configuration instructions provided.

Reactions

  • FindMy Flipper is an AirTag and SmartTag emulator project available on GitHub, attracting significant interest from the tech community.
  • Concerns have been raised about the security of one of its dependencies, specifically an insecure iCloud authentication library that could lead to account bans by Apple.
  • The project has potential implications for bypassing Apple's anti-stalking features by cycling through multiple tags, making it a topic of interest for both security enthusiasts and privacy advocates.

Classifying all of the pdfs on the internet

  • A researcher classified the entire SafeDocs dataset, an 8TB collection of 8.4 million PDFs, using a combination of machine learning (ML) and deep learning models.
  • The best-performing model, XGBoost embeddings, achieved 85.26% accuracy after hyperparameter tuning, demonstrating the effectiveness of combining traditional ML and deep learning techniques.
  • The project highlights the potential for large-scale text classification and provides all datasets and code on Huggingface and Kaggle for further exploration.

Reactions

  • The post discusses the classification of 500,000 PDFs, not all PDFs on the internet, as the title might misleadingly suggest.
  • The author and commenters explore the use of Large Language Model (LLM) embeddings and other techniques for classifying and extracting data from PDFs.
  • The conversation highlights the challenges and potential of handling large datasets, with some users noting that 8TB of PDFs is substantial but not the largest collection available online.

The brain simulates actions and their consequences during REM sleep

  • A new preprint study suggests that during REM sleep, the brain simulates actions and their consequences by issuing motor commands that are not executed but have effects as if they were.
  • The research highlights the role of the superior colliculus in mice, which issues these motor commands, indicating the brain uses its internal model to simulate interactions with the world during sleep.
  • This study is significant as it provides insights into the brain's activity during REM sleep and how it might use dreams to process and simulate real-world interactions.

Reactions

  • REM sleep involves the brain simulating actions and their consequences, potentially preparing individuals for real-life scenarios.
  • Users discuss how dreams might serve as training simulators for extreme situations and help solve complex problems, with some suggesting the possibility of external control of dreams.
  • The conversation highlights the role of sleep in processing traumatic memories, improving decision-making, and consolidating learning and memory.

Eric Schmidt deleted Stanford interview

Reactions

  • Eric Schmidt's deleted Stanford interview has ignited debates on Hacker News, particularly around his criticism of Google's work-life balance and its effect on competitiveness.
  • Schmidt's controversial comments on IP theft and the necessity of in-office work have fueled discussions on the impact of remote work on productivity and Google's culture.
  • Despite its deletion, the interview transcript is accessible on GitHub and has been frequently re-uploaded, indicating strong public interest.

Prompt Caching

  • Anthropic has introduced a new feature called Prompt Caching (beta) to optimize API usage by resuming from specific prefixes in prompts, reducing processing time and costs for repetitive tasks.
  • Prompt Caching is particularly useful for prompts with many examples, large contexts, repetitive tasks, and long conversations, with a cache lifetime of 5 minutes.
  • Supported models include Claude 3.5 Sonnet and Claude 3.0 Haiku, with cache write tokens being 25% more expensive and cache read tokens 90% cheaper than base input tokens.

Reactions

  • Anthropic has introduced a new feature called Prompt Caching for its Claude AI, which allows caching of system prompts, tools, and user messages to reduce costs and latency.
  • The feature is particularly beneficial for applications with frequent, repetitive queries, as it can significantly lower the cost by up to 90% and improve response times.
  • This development is notable for its potential to enhance the efficiency of client-facing applications and ongoing conversations with AI models by maintaining context across multiple requests within a short time frame.

Archiving "The Famous Computer Cafe"

  • A collection of interviews from the 1980s radio show "The Famous Computer Cafe" has been discovered, digitized, and uploaded to the Internet Archive.
  • The show, which aired from 1983 to 1986, featured notable tech figures like Timothy Leary, Douglas Adams, and Bill Gates, covering computer industry news and product reviews.
  • Archivist Kay Savetz recovered the tapes, launched a GoFundMe for digitization, and uploaded the episodes, though some interviews, including those with Ray Bradbury and Gene Roddenberry, remain lost.

Reactions

  • The Internet Archive has made available episodes of "The Famous Computer Cafe," a notable tech radio show from the 1980s, featuring interviews with prominent figures like Bill Gates and Douglas Adams.
  • Users can access these episodes via an RSS feed, which can be imported into podcast apps, and listen to historical discussions on topics like AI and computer graphics.
  • The archive includes a variety of playback options, including a Winamp clone player, enhancing the nostalgic experience for listeners.

Apple might be implementing a VPN censorship order in Brazil

  • Users in Brazil are experiencing difficulties downloading Proton VPN from the iOS App Store, potentially due to issues with the App Store itself or possible censorship by Apple.
  • As a workaround, Proton suggests using the iOS beta version via Testflight or setting up a manual WireGuard configuration to access their VPN servers.
  • The issue is specific to the iOS platform in Brazil; Proton VPN and other Proton apps remain available on other platforms and are unaffected.

Reactions

  • Apple may be blocking certain VPN apps in Brazil due to potential legal requirements, mirroring actions in China and Russia.
  • This situation raises concerns about the lack of alternatives for Apple users, who are restricted to installing apps only from the App Store, unlike Android users who can sideload apps.
  • Critics argue that these restrictions limit user freedom and security, potentially leading to broader issues of censorship and control, especially in politically sensitive regions.