Published: 2025-11-07 | Origin: Hacker News

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Published: 2025-11-07 | Origin: Hacker News

Virginia Tech researchers have discovered that memory loss in older individuals is linked to specific molecular changes in the brain, rather than being a mere consequence of aging. In two studies, led by Timothy Jarome and his graduate students, they utilized gene-editing tools on rats to target these age-related changes and enhance memory performance. Their research identified that disruptions in the process of K63 polyubiquitination—responsible for tagging proteins to facilitate brain cell communication and memory formation—occur as the brain ages.

Published: 2025-11-06 | Origin: /r/programming

The phrase "favor composition over inheritance" is often used in software design, but it’s important to delve deeper into its origins and implications rather than accepting it at face value. This principle is derived from the Design Patterns book by the "Gang of Four," where it emphasizes using object composition instead of class inheritance. The discussion contrasts inheritance as a “white box” approach, where the inheriting class sees the details of the parent class, with composition as a "black box" approach, giving access only

Published: 2025-11-06 | Origin: Hacker News

Raph Koster, a game designer, outlines a twelve-step program to understand game design, emphasizing that "fun" is not always a useful term in this context. He differentiates between various types of fun, stating that the concept of "mastery of problems" is central to game design, indicating that activities that challenge players—even if painful—can still be engaging. Koster argues that all game systems should focus on problem-solving, while also acknowledging that not all interactive entertainment needs to be centered

Published: 2025-11-06 | Origin: /r/programming

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Published: 2025-11-06 | Origin: /r/programming

The author reflects on their experience as a software engineer, noting the challenges of striving for clean, ideal systems. While cleaner systems are beneficial for development and maintenance, the author's obsession with achieving the perfect solution negatively impacted their work. They recount a specific instance at re:cap involving data connections and error handling; instead of implementing a simple fix to log the latest error, they pursued a more complex "right" solution that required significantly more effort. This fixation on perfection led to difficulties in debugging and increased strain

Published: 2025-11-06 | Origin: Hacker News

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Published: 2025-11-06 | Origin: Hacker News

A new study published in the Monthly Notices of the Royal Astronomical Society suggests that the universe's expansion may be slowing down, contrary to the previously held belief that it was accelerating due to dark energy. This research, led by Professor Young-Wook Lee from Yonsei University, presents evidence that the universe has entered a phase of decelerated expansion and that dark energy evolves more rapidly than previously understood. If confirmed, these findings could significantly alter current cosmological theories and help resolve existing discrepancies, such

Published: 2025-11-06 | Origin: Hacker News

The content discusses the varying degrees of understanding technology, contrasting simple concepts like boiling water with more complex ones like learning to ride a bicycle. It highlights the significance of Large Language Model (LLM) agents, suggesting that, regardless of personal opinions about them, they represent a major idea in computing. The author encourages engaging with LLM agents as both a means of accurately forming opinions and for the surprising programming experience they offer. The simplicity of implementing an LLM agent using the OpenAI Responses API is emphasized

Published: 2025-11-06 | Origin: Hacker News

A recent report details the alarming discovery of nearly 2 billion unique email addresses and 1.3 billion unique passwords, with 625 million of those passwords being previously unknown. This collection marks the largest dataset ever processed by the researchers. The data stems from various breaches, where stolen email addresses and passwords are often reused, making them vulnerable across multiple platforms due to common password practices among users. The author discusses the importance of verifying such data and shares personal findings of having their own old email and password found

Published: 2025-11-06 | Origin: /r/programming

The transcript from the October 30, 2025 edition of "This Month in React" features a discussion among three participants: Carl, Mark, and Mo. Carl hosts the event, providing insights into community programs and tools at React Flux. Mark, affiliated with Replay.io, introduces recent developments in the Immer library, explaining his extensive efforts (over 120 hours) to improve its performance following user feedback. He highlights minor adjustments and mentions that Immer 10.2 has been released, with larger

Published: 2025-11-06 | Origin: /r/programming

The article from Revelry discusses the valuable lessons learned from working on a single codebase for an extended period, emphasizing the unique insights gained from long-term experience. The author reflects on their early career, where they spent over ten years on one project, which allowed them to develop a deep understanding of the code and its challenges. This experience highlighted how past decisions, initially justified, could lead to complications in software maintenance and development. Over time, the author learned to recognize their mistakes, accept the need for

Published: 2025-11-06 | Origin: Hacker News

The writer reflects on their fond memories of the original Splinter Cell (2002), a game that played a significant role in their journey into programming and hacking. Expressing nostalgia for the title, they note a surprising lack of information regarding cut content from the game, which prompted them to explore their own copy of the game for data extraction. While analyzing the game's file structure, they discovered unfamiliar file formats, particularly .lin files, which appear to store map data divided into parts. The writer speculates

Published: 2025-11-06 | Origin: /r/ruby

Rails 8.1 has been released with a focus on enhancing developer experience and production reliability. Key features include Active Job Continuations, structured logging, and local CI. Active Job Continuations allow jobs to be segmented into manageable steps that can resume after interruptions, similar to savepoints in video games. This feature is beneficial for long-running processes, as it prevents the need for starting jobs from scratch when interrupted. It supports a cursor method that saves the processing state, allowing continuation from the last completed

Published: 2025-11-06 | Origin: Hacker News

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Published: 2025-11-06 | Origin: /r/ruby

The content promotes Heroku's advanced AI Platform as a Service (PaaS) designed for easy app deployment and scaling. It highlights how Salesforce has enhanced developer productivity for 15,000 engineers using Heroku and AI solutions. Heroku offers a flexible platform that supports multiple programming languages, allowing developers to concentrate on building apps rather than managing infrastructure. The platform serves various industries, including Healthcare, Entertainment, Automotive, Retail, and FinTech, helping businesses innovate and scale. A specific customer success story

Published: 2025-11-06 | Origin: /r/ruby

Jon Sully discusses optimizing a customer's public website for SEO, emphasizing the performance of their Rails application, which includes a public website, user portals, and an admin backend. The core solution proposed was to run a second production application instance, which mirrors the main app's code and environment but operates separately. This approach helps improve the public website's performance, crucial for their SEO-driven business, as slower segments of the app can slow down the overall performance. Sully invites discussions on scaling and performance strategies,

Published: 2025-11-06 | Origin: /r/programming

The provided content discusses "metapool," a high-performance, cache-optimized memory allocator designed specifically for game engines, written in C++23. It emphasizes its unique pool-style allocation layout aimed at optimizing for expected allocation patterns, distinguishing it from general-purpose allocators. Key features include: - A header-only design with no external dependencies, just include `mtp_memory.hpp` to use. - An allocator that can be up to approximately 1300 times faster than `malloc` and 3.

Published: 2025-11-06 | Origin: Hacker News

After experiencing burnout from a demanding project developing a shipping-cost algorithm, the author began learning Sumerian, an ancient language that hasn't been spoken for 4,000 years. Initially seen as a pointless obsession, this endeavor evolved into a meaningful exploration of resilience and the satisfaction found in challenging pursuits without practical outcomes. Reflecting on the late nights spent on a complex web portal project that ultimately got canceled just before launch, the author contrasts the intense focus and pride from that experience with the quiet joy of mastering

Published: 2025-11-06 | Origin: /r/ruby

Julian Rubisch's article discusses the DragonRuby Game Toolkit, a cross-platform 2D game engine that enables developers to create games using Ruby. The piece outlines the basic concepts of game development with DragonRuby, specifically through the example of a "Flappy Bird" clone. Rubisch addresses two key points: firstly, that DragonRuby is not free, requiring a one-time payment of $48 for a standard license, which he believes is reasonable given its advanced features and publishing capabilities to platforms like