Popular：
Virtualization DNS security formal verification reachability analysis compiler errors macro conflict web extension development framework Bitmap Graphics API inconsistencies All Tags

Walter Isaacson: My So-Called Writing Life

2025-01-01
Walter Isaacson: My So-Called Writing Life

This excerpt from Walter Isaacson's memoir recounts his journey from journalist to bestselling biographer. He shares anecdotes from his time at Time magazine, insightful interviews with prominent figures, and reflections on writing, journalism, and technology. He emphasizes the power of biographical storytelling, the impact of technological advancements on information dissemination and writing styles, and expresses concerns about the future of writing and copyright.

Read more
(lehnews.wordpress.com)
Misc biography journalism

Charting the Universe: Is the Cosmos Itself a Black Hole?

2024-12-24
Charting the Universe: Is the Cosmos Itself a Black Hole?

Two physicists have created a chart encompassing every known object in the universe's history, plotted by mass and size. The chart reveals that all objects reside within a triangle bounded by gravitational and Compton limits. Black holes lie on the gravitational limit, while fundamental particles are on the Compton limit. Intriguingly, the universe itself also sits on the gravitational limit, raising the question: is our universe a black hole? The chart also illustrates the universe's evolution, from the formation of fundamental particles after the Big Bang to the emergence of stars and galaxies, and points towards the exploration of unknowns like dark matter.

Read more
(www.economist.com)
AI cosmology fundamental particles

Newtonianism for Ladies: Science, Fashion, and a Dash of Controversy

2025-09-21

Algarotti's *Il Newtonianismo per le dame* uses a dialogue between a narrator and a Marchioness to explain Newtonian physics, cleverly blending scientific education with entertainment. Poems dedicated to prominent figures and a lighthearted approach to optics, rather than mechanics, characterize the text. While seemingly promoting female scientific literacy, the portrayal of the Marchioness's understanding sparks debate: some see her as a passive recipient of knowledge, while others highlight the book's depiction of a woman's curiosity about science alongside fashion.

Read more
(www.whipplelib.hps.cam.ac.uk)
Tech science popularization gender studies

US Cybersecurity in Flux: Political Headwinds and a Generational Gap

2025-08-11
US Cybersecurity in Flux: Political Headwinds and a Generational Gap

The US cybersecurity landscape is facing a perfect storm. Trump-era policy shifts have led to personnel purges and unclear priorities, evident at this week's Black Hat and DEFCON conferences. A conversation between former NSA and Cyber Command chief Paul Nakasone and DEFCON founder Jeff Moss highlighted key challenges: the politicization of technology, a significant generational gap between government officials and the tech sector, and escalating conflicts with adversaries like China, Iran, North Korea, and Russia. The discussion also touched upon the rampant rise of ransomware and the uncertainty fueled by geopolitical conflicts, painting a picture of a complex and increasingly perilous cybersecurity future.

Read more
(www.wired.com)
Tech

Active Storage Dashboard: A Rails Engine for Managing Active Storage

2025-07-14

After 10 years of building Rails applications, the author found managing Active Storage data cumbersome. This led to the creation of Active Storage Dashboard, a mountable Rails engine providing a modern interface for monitoring and managing Active Storage. Features include real-time storage statistics, browsable interfaces, advanced filtering, direct download, orphaned file cleanup, and support for multiple databases and Rails versions. The article delves into the advantages of Rails engines and best practices for building robust engines, covering namespacing, configuration options, documentation, minimizing dependencies, extensibility, error handling, and security.

Read more
(www.panasiti.me)
Development Rails Engine

Stubborn Feed Readers Bring Down Website

2024-12-22

A blogger experienced website unavailability, tracing it not to carriers or hosting, but to misbehaving feed reader software. These readers ignore best practices, sending unconditional requests and ignoring 429 errors (too many requests), ultimately causing the server to defensively shut down. The blogger resorted to a blog post urging users to check their feed readers, offering a tool called "Feed Reader Score" to analyze reader behavior and resolve the issue.

Read more
(rachelbythebay.com)
Development Feed reader server error website maintenance

Build an OS in 1000 Lines of Code: A Beginner's Guide

2025-01-08

This book guides you through building a small operating system from scratch, step-by-step. While OS kernel development may sound daunting, the fundamental functions are surprisingly simple. Using C, you'll implement context switching, paging, user mode, a command-line shell, a disk driver, and file I/O—all within 1000 lines of code. The challenge? Debugging. You'll learn debugging techniques essential for OS development, tackling challenges like the boot process and paging. Get ready for an exciting journey into the world of OS development!

Read more
(operating-system-in-1000-lines.vercel.app)
Development

Cerebras' 100x Defect Tolerance: Cracking the Wafer-Scale Challenge

2025-01-15
Cerebras' 100x Defect Tolerance: Cracking the Wafer-Scale Challenge

Cerebras has defied conventional wisdom by building a 50x larger chip than its competitors while achieving comparable yields. The secret? A revolutionary approach to defect tolerance. By designing incredibly small AI cores (1% the size of an H100's core) and implementing a sophisticated routing architecture that bypasses defects, Cerebras achieves a remarkable 93% silicon utilization in its Wafer Scale Engine. This groundbreaking technology makes wafer-scale computing not just feasible, but commercially viable, opening new horizons for AI and high-performance computing.

Read more
(cerebras.ai)
Hardware Wafer-scale Integration Fault-Tolerant Computing AI Accelerator

TracepointArgs: Unlocking Linux Kernel Tracepoints

2025-02-04

Tired of hunting through Linux kernel source code for tracepoint metadata and struct layouts? Meet tracepointargs, a new command-line tool that lists all available Linux kernel tracepoints, their arguments, datatypes, and related structs. It even parses kernel struct layouts, allowing you to understand tracepoint details without digging through source files. Combined with bpftool to generate a vmlinux.h file, you can easily inspect the internals of structures, even recursively expanding nested ones. A must-have for eBPF developers and kernel explorers!

Read more
(tanelpoder.com)
Development

Turso: A 1GB Mystery Solved by an LLN

2025-09-01
Turso: A 1GB Mystery Solved by an LLN

Turso, a Rust rewrite of SQLite, encountered a bizarre issue: databases exceeding 1GB were reported as corrupted by SQLite, despite being perfectly intact. The root cause? SQLite inserts a special page at the 1GB mark, a step missing in Turso. Nikita, a remarkably skilled engineer on the Turso team (suspected to be an LLM or alien!), leveraged his seemingly superhuman knowledge to pinpoint and fix the bug. This highlights the importance of thorough testing and comprehensive documentation, showcasing the potential of LLMs in code understanding and debugging.

Read more
(turso.tech)
Development

Subsecond: Sub-Second Hot-Patching for Rust

2025-06-25

Subsecond is a Rust library enabling hot-patching, allowing code changes in a running application without restarts. This is invaluable for game engines, servers, and long-running apps where the edit-compile-run cycle is too slow. It also introduces 'ThinLinking', dramatically speeding up Rust compilation in development. Subsecond works by detouring function calls via a jump table, avoiding unsafe memory modification. An external tool compiles changed code, sends it to the application, and Subsecond applies the patch. Currently, it only patches the 'tip' crate and has limitations regarding globals, statics, thread-locals, and struct layouts. It supports major platforms, excluding iOS devices due to code signing.

Read more
(docs.rs)
Development hot-patching hot-reloading

Meta's Onavo App: A Stealthy HTTPS Traffic Hijack

2025-08-01
Meta's Onavo App: A Stealthy HTTPS Traffic Hijack

A recent class-action lawsuit against Meta reveals evidence suggesting the company may have violated the Wiretap Act. Court documents and reverse engineering of the Onavo Protect app show Meta used a technique called "ssl bump" to intercept encrypted HTTPS traffic, decrypting traffic to specific domains like Snapchat, YouTube, and Amazon. This involved tricking users into installing a CA certificate issued by "Facebook Research." While ineffective on newer Android versions, this method effectively gathered user data from 2016 to 2019. The incident highlights the potential for large tech companies to violate user privacy and abuse mobile security mechanisms.

Read more
(haxrob.net)
Tech HTTPS interception

Automated Assembly System Creates Cyborg Insects

2024-12-15
Automated Assembly System Creates Cyborg Insects

Scientists have developed an automated system for assembling insect-computer hybrid robots. The system uses a vision-guided robotic arm to precisely implant custom-designed bipolar electrodes onto the backs of Madagascar hissing cockroaches. The entire process takes only 68 seconds, and the assembled robots achieve steering and deceleration control comparable to manually assembled systems. A multi-agent system of 4 robots successfully navigated an obstacle course, demonstrating the feasibility of mass production and real-world applications. This research paves the way for scalable production and deployment of insect robots.

Read more
(arxiv.org)
AI insect robots automated assembly robotics

Keymapper: A Cross-Platform Context-Aware Key Remapper

2025-01-29
Keymapper: A Cross-Platform Context-Aware Key Remapper

Keymapper is a cross-platform, context-aware key remapper that lets you redefine your keyboard layout and shortcuts globally or per application. Supporting GNU/Linux, Windows, and macOS, it manages all your shortcuts in a single configuration file, even binding shortcuts to launch applications. Advanced features include using mouse buttons and the wheel in mappings, and activating different mappings based on context like window title, class, process path, or input device.

Read more
(github.com)
Development key remapping shortcuts

Siemens PC 100 Assembly Manual Reveals Undocumented 6502 Opcodes

2025-05-09

A 1980 Siemens PC 100 assembly manual surprisingly documents "illegal" opcodes for the 6502 processor. The PC 100, based on the Rockwell AIM-65, features extra instructions labeled "Sonderbefehle" (special instructions), including AAX, DCM, LAX, and ISB, offering potential performance gains for programmers. While not officially supported and subject to change, these undocumented opcodes reveal a deeper understanding of the 6502 by Siemens engineers, adding a fascinating layer to retrocomputing history and highlighting the creative exploration of hardware and software capabilities at the time.

Read more
(www.pagetable.com)
Hardware Siemens

PCIe 5.0 Bandwidth Impact on Content Creation GPUs: A Deep Dive

2025-07-05
PCIe 5.0 Bandwidth Impact on Content Creation GPUs: A Deep Dive

With PCIe 5.0 GPUs now available, the impact of bandwidth on content creation applications is a key question. Testing reveals that in DaVinci Resolve, PCIe 5.0 x16, x8, and 4.0 x16 perform similarly, but reducing bandwidth to 4.0 x4 or lower significantly impacts performance. After Effects shows less impact, while Blender and Octane rendering are virtually unaffected. LLM benchmarks show limited bandwidth effects, but multi-GPU and system RAM interplay should be considered. In summary, for content creation, running a GPU at x8 on a PCIe 5.0 motherboard is usually fine, but beware of the 4.0 x4 bandwidth limitation on lower-end motherboards.

Read more
(www.pugetsystems.com)
Development GPU Performance

Indie Game Dev in 2025: Ditching Big Engines for Lightweight Toolchains

2025-05-20
Indie Game Dev in 2025: Ditching Big Engines for Lightweight Toolchains

A game developer with 20 years of experience shares their 2025 indie game development workflow. Rejecting large engines like Unity and Unreal, they opted for a lightweight toolchain built around C#, SDL3, FMOD, and Dear ImGui. This approach, they argue, offers greater flexibility, fun, and control. The article details their tech stack choices, asset management, level editors, cross-platform porting, and encourages developers to choose a workflow that suits them.

Read more
(noelberry.ca)
Game

SpikingBrain: A Brain-Inspired, Highly Efficient Large Language Model

2025-09-14
SpikingBrain: A Brain-Inspired, Highly Efficient Large Language Model

SpikingBrain is a 7B parameter large language model inspired by brain mechanisms. It integrates hybrid efficient attention, MoE modules, and spike encoding, supported by a universal conversion pipeline compatible with the open-source model ecosystem. This allows for continual pre-training with less than 2% of the data while achieving performance comparable to mainstream open-source models. Furthermore, the framework, operators, parallel strategies, and communication primitives are adapted for non-NVIDIA (MetaX) clusters, ensuring stable large-scale training and inference. SpikingBrain achieves over 100x speedup in TTFT for 4M-token sequences, while spiking delivers over 69% sparsity at the micro level. Combined with macro-level MoE sparsity, these advancements provide valuable guidance for designing next-generation neuromorphic chips. The repository provides the full implementation and weights of SpikingBrain-7B, including HuggingFace, vLLM inference, and quantized versions, enabling flexible deployment and research across various scenarios.

Read more
(github.com)
AI Neuromorphic Computing

The Perils of Democracy: How Armies Navigate the Shoals of Unstable Democracies

2025-05-25
The Perils of Democracy: How Armies Navigate the Shoals of Unstable Democracies

This article explores the inherent flaws of democratic systems and their implications for the military. Using historical examples like the Hamas election in Gaza, the French Revolution, the rise of extremist parties in Lithuania, the Nazi seizure of power in Germany, and the Rwandan genocide, the author illustrates potential democratic crises: the election of anti-democratic governments, mob rule, the rise of extremism, abuse of emergency powers, and the oppression of minorities. The author argues that the US military must remain constitutionally loyal while being vigilant against these democratic pitfalls, avoiding entanglement in political disputes and upholding American democratic values.

Read more
(angrystaffofficer.com)
Misc political risk

Firefox Defends Against Double Exploit at pwn2own

2025-05-18

At this year's pwn2own hacking competition, two teams targeted Firefox, but both failed to breach its sandbox. Mozilla responded swiftly, releasing updates within a day of the second exploit announcement, showcasing its robust security response and mature security practices. While the attacks had limited impact, Mozilla urges all users to update Firefox immediately. This event further validates Firefox's sandbox and highlights Mozilla's commitment to security.

Read more
(blog.mozilla.org)
Tech

C++26: Pack Indexing Simplifies Element Extraction

2025-01-24

While C++11 introduced parameter packs, extracting specific elements remained cumbersome. C++26, thanks to proposal P2662R3, introduces pack indexing, allowing direct access to pack elements using the subscript operator, e.g., `T...[0]` for the first element. This leads to cleaner, more readable code and improved compile-time performance. Although negative indexing and slicing aren't yet supported, the feature is already highly usable, significantly improving C++ development.

Read more
(www.sandordargo.com)
Development parameter packs pack indexing

SQL Subquery Issue: A Subtle Difference Leading to Unexpected Results

2025-08-31
SQL Subquery Issue: A Subtle Difference Leading to Unexpected Results

A reader, Dave, encountered a minor issue while testing a SQL subquery example from Vadim's book using the Northwind database on W3Schools. Dave's code differed slightly from the book's example, using '<' instead of '<=' and omitting '#'. Despite this, his scalar subquery returned zero, unlike the predecessor query in the book. This raises questions about how subtle differences in SQL queries can affect results.

Read more
(vadimtropashko.wordpress.com)
Development Subquery

Sample Size in Baseball: How Much Data is Enough?

2025-04-04
Sample Size in Baseball: How Much Data is Enough?

A baseball season is a collection of countless small events, each pitch contributing to the final outcome. Evaluating player performance requires a substantial amount of data, but the key is understanding which data points are meaningful. This article explores the issue of sample size in baseball statistics, explaining why a single at-bat isn't enough to judge a player's skill and why more data is needed to cancel out randomness. It highlights that different statistics require different sample sizes to 'stabilize,' for example, strikeout rate needs a smaller sample than BABIP. The author stresses the importance of sample size to avoid jumping to conclusions based on limited data.

Read more
(library.fangraphs.com)
Game baseball analytics sample size data stability

Gukesh Crowned Youngest World Chess Champion in History

2024-12-12
Gukesh Crowned Youngest World Chess Champion in History

In round 14 of the 2024 World Chess Championship, 18-year-old Indian Grandmaster Gukesh D defeated defending champion Ding Liren to become the youngest world champion ever! Ding employed a Reversed Grünfeld Defense, but Gukesh, with precise opening play and deep preparation, steered the game into a complex endgame. After a prolonged struggle, Ding blundered, allowing Gukesh to capitalize and secure a historic victory, fulfilling a lifelong dream.

Read more
(lichess.org)
Game chess world champion Gukesh

Six Ways to Tame the Beast: Mitigating Context Failures in LLMs

2025-08-24
Six Ways to Tame the Beast: Mitigating Context Failures in LLMs

Large language models (LLMs) boast ever-increasing context windows, but excessive context can hinder performance. This article details six mitigation strategies: Retrieval-Augmented Generation (RAG) for selective information addition; Tool Loadout for choosing relevant tools; Context Quarantine for isolating contexts into separate threads; Context Pruning for removing irrelevant information; Context Summarization for condensing the context; and Context Offloading for storing information outside the LLM's context. Studies show these methods significantly improve model accuracy and efficiency, particularly when handling numerous tools or complex tasks.

Read more
(www.dbreunig.com)
AI Context Management

Simplifying Database Modeling with 6NF: A Thought Experiment

2025-08-09
Simplifying Database Modeling with 6NF: A Thought Experiment

This article proposes a novel database modeling approach that simplifies database design and management by decomposing any database into virtual 6NF relations (anchors, attributes, links). The author argues this method handles various database types, including relational, NoSQL, and even graph databases, effectively addressing redundancy and complexity in traditional database modeling. The article details transforming database elements into 6NF relations and explores applications in database documentation, migration, and data catalog construction. Ultimately, the author posits that 6NF isn't as 'exotic' or 'impractical' as traditionally perceived but offers a more concise and efficient approach to database modeling.

Read more
(minimalmodeling.substack.com)
Development database modeling

GPU Glossary: A Comprehensive Guide to GPU Architecture

2025-01-14
GPU Glossary: A Comprehensive Guide to GPU Architecture

The Modal team has created a comprehensive GPU glossary to address the fragmented nature of GPU documentation. This interactive online dictionary connects concepts across different levels of the stack, from CUDA architecture to nvcc compiler flags. Users can navigate via hyperlinks or read linearly. The glossary covers device hardware (CUDA architecture, Streaming Multiprocessors, etc.), device software (CUDA programming model, PTX, etc.), and host software (CUDA C++, NVIDIA drivers, etc.), providing developers with a comprehensive and easily understandable resource for GPU knowledge.

Read more
(modal.com)
Development

arXiv's 20-Year Odyssey: One Programmer's Reluctant Reign

2025-03-27
arXiv's 20-Year Odyssey: One Programmer's Reluctant Reign

Paul Ginsparg's arXiv preprint server, a cornerstone of scientific communication, has undergone a dramatic transformation over two decades. Initially a solo project, its growth led to management challenges, code maintenance nightmares, and friction with library staff. Despite attempts to relinquish control, Ginsparg remained deeply involved until the Simons Foundation's funding enabled a much-needed restructuring and modernization. This article details the story of a brilliant programmer's tenacious yet bittersweet journey, and the arduous evolution of an open-source platform.

Read more
(www.wired.com)
Development

Debouncing in Programming: Efficiently Handling User Input

2025-08-07
Debouncing in Programming: Efficiently Handling User Input

In programming, debouncing is a technique used to handle frequent events, such as continuous user input. It discards operations that occur too closely together within a specified time interval, consolidating them into a single invocation to prevent UI lag. For example, when a user types a search query, debouncing waits for a pause before executing the search, improving efficiency and user experience. Similar to throttling, but unlike throttling which limits the frequency of continuous operations, debouncing waits for a period of inactivity before acting.

Read more
(developer.mozilla.org)
Development user input event handling
1 2 … 303 304 305 307 309 310 311 … 596 597