Marvel's Fantastic Four: First Steps Dominates Box Office

2025-07-28
Marvel's Fantastic Four: First Steps Dominates Box Office

Marvel's "Fantastic Four: First Steps" raked in approximately $57 million on its opening day, making it the second-highest opening day of the year and a significant win for Marvel and Disney. This success comes a year after Disney announced a reduction in film and TV output to focus on quality. The film's global box office has already reached $106 million, projecting a weekend total around $125 million, surpassing even the recent "Superman" release. Despite a $200 million budget, positive critical reception (88% on Rotten Tomatoes, 7.6/10 on IMDb) bodes well for profitability. Remarkably, its opening weekend already surpasses the total domestic gross of the 2015 "Fantastic Four" film.

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Groundbreaking Study: Beta-Blockers May Harm Women After Heart Attacks

2025-09-01
Groundbreaking Study: Beta-Blockers May Harm Women After Heart Attacks

Groundbreaking research reveals that beta-blockers, a first-line treatment for heart attacks for decades, don't benefit most patients and may increase hospitalization and death risk in some women, but not men. A large-scale trial showed women with minimal heart damage after a heart attack who received beta-blockers were significantly more likely to experience another heart attack, heart failure hospitalization, and nearly triple the death risk compared to those not receiving the drug. However, for patients with a left ventricular ejection fraction below 40%, beta-blockers remain standard care. This study highlights crucial gender differences in heart disease treatment and is likely to reshape international clinical guidelines.

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Animating Rosettas in Ada: A Short Tutorial

2025-09-02
Animating Rosettas in Ada: A Short Tutorial

This tutorial demonstrates Ada's capabilities by creating a program that generates animated rosettas (hypotrochoids) as SVG files. It uses Ada 2022 features and leverages Alire, Ada's package manager, for project management. The tutorial highlights Ada's readability, strong typing, and safety, showcasing its use in geometric computation and SVG rendering. The author emphasizes Ada's suitability as a modern, general-purpose language, despite its reputation for safety-critical applications.

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Development

Sudoku: An Elegant Interplay of Graph Theory and Abstract Algebra

2025-04-13
Sudoku: An Elegant Interplay of Graph Theory and Abstract Algebra

The seemingly simple game of Sudoku hides deep mathematical principles. This article explores two approaches to solving Sudoku puzzles: graph theory and abstract algebra. The graph theory approach transforms the Sudoku grid into a graph, using vertex coloring algorithms to find solutions. The algebraic approach converts Sudoku rules into a system of polynomial equations, using Gröbner bases to find solutions. Both methods showcase the beauty of mathematics and offer novel approaches to solving Sudoku.

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Misc

Evolution of the American Mailbox: From Classic to Quirky

2025-05-03
Evolution of the American Mailbox: From Classic to Quirky

For much of the 20th century, the classic American mailbox reigned supreme: galvanized steel, rounded top for water runoff, and a carrier signal flag. But the rise of e-commerce and package deliveries led the USPS to introduce a Next Generation Package Mailbox, which saw muted market success. This spurred a wave of diverse mailbox designs, ranging from plastic alternatives to modern aesthetics, showcasing practical functionality and individual expression. Some designs even reveal a more aggressive, unconventional style, reflecting the multifaceted nature of American culture and design preferences.

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1GB Boot Partition? Not Enough! My Debian Upgrade Nightmare

2025-03-19

I confidently allocated a 1GB ESP partition and a 1GB boot partition, only to be quickly proven wrong. During a routine system update, apt complained about insufficient boot partition space. The culprit? New NVIDIA driver modules from my recently installed graphics card. A temporary fix was cleaning up old kernel versions, but this was only a band-aid solution. The final solution involved using GParted to shrink the root partition, expand the boot partition, and migrate data using rsync. I also updated fstab and grub. Crucially, I learned to run `grub install` before cleaning the old partition, otherwise the system wouldn't boot. Finally, I repurposed the old boot partition as an unencrypted temporary backup partition.

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Development Partition Management

Amazon's Leadership Principles: A Critical Examination

2025-09-01

This article offers a critical look at Amazon's leadership principles, particularly "Customer Obsession," "Ownership," and "Bias for Action." The author argues that Amazon overemphasizes speed and meeting superficial customer demands, neglecting true customer needs and long-term value. Regarding "Customer Obsession," the author criticizes Amazon's over-reliance on customer feedback rather than proactively developing potentially impactful technologies. On "Ownership," the author points to a lack of communication and collaboration within Amazon, with significant information silos between teams. Concerning "Bias for Action," the author believes Amazon overemphasizes speed at the expense of product quality and customer trust, advocating for a "bias for inaction" mechanism at senior engineering levels to ensure high standards before product launches.

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Startup

arXivLabs: Experimenting with Community Collaboration

2025-05-23
arXivLabs: Experimenting with Community Collaboration

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv only partners with those sharing these commitments. Have an idea to enhance the arXiv community? Explore arXivLabs.

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Development

The 90s Web Design Trinity: Zeldman, Siegel, and Nielsen

2025-05-29
The 90s Web Design Trinity: Zeldman, Siegel, and Nielsen

The rise of Flash and CSS in 1997 birthed three distinct web design philosophies. David Siegel championed 'hacks,' Jakob Nielsen prioritized simplicity, and Jeffrey Zeldman blended flair with usability. This article explores their approaches and careers. Siegel focused on aesthetics, Nielsen on usability, while Zeldman found a middle ground, his pragmatic approach proving dominant. Today, Nielsen delves into AI, Siegel pursues diverse interests, but Zeldman remains a web design force, soon to relaunch his personal website with a fresh design. The article offers a nostalgic look at the formative years of web design.

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Design 90s internet

Mathematician Cracks Algebra's Oldest Problem with Novel Number Sequences

2025-05-02
Mathematician Cracks Algebra's Oldest Problem with Novel Number Sequences

UNSW Sydney's Honorary Professor Norman Wildberger, in collaboration with computer scientist Dr. Dean Rubine, has unveiled a new method for solving higher-order polynomial equations, published in *The American Mathematical Monthly*. Rejecting the irrational numbers used in classical approaches, the method utilizes novel number sequences called the "Geode," a multi-dimensional extension of Catalan numbers. This breakthrough solves a centuries-old problem and promises improved algorithms for computer programs.

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German ISP Changes DNS After Website Exposes Copyright Blocking Organization

2025-08-24

A major German ISP altered its DNS settings after the exposure of the CUII, a private organization deciding website blocks without transparency or judicial oversight. The author built cuiiliste.de to track blocked domains, as the CUII refuses to publish its list. The CUII previously mistakenly blocked defunct websites. ISPs initially used notice.cuii.info to indicate blocked sites, but later stopped, making blocked sites appear nonexistent. However, Telefonica (parent of o2, Germany's fourth-largest ISP) continued this method. After Telefonica checked its own test domain, blau-sicherheit.info, on the author's site, they changed their DNS to stop using notice.cuii.info, making tracking CUII blocks harder. This raises suspicions of the CUII trying to bury its mistakes.

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Tech

40-Year-Old Conjecture Shattered: New Hash Table Outperforms Expectations

2025-02-10
40-Year-Old Conjecture Shattered: New Hash Table Outperforms Expectations

Graduate student Krapivin (University of Cambridge), along with Farach-Colton and Kuszmaul (New York University), have overturned Yao's conjecture, a long-held belief in computer science. Their novel hash table achieves a worst-case time complexity of (log x)² for element lookups, significantly faster than the previously believed optimal x. This groundbreaking research not only solves a classic problem in hash table design but also dramatically improves data storage efficiency, sparking significant interest within the academic community.

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Development hash table

Anthropic CEO Warns of Chinese Espionage Targeting US AI Secrets

2025-03-13
Anthropic CEO Warns of Chinese Espionage Targeting US AI Secrets

Anthropic CEO Dario Amodei has warned that Chinese spies are likely stealing valuable "algorithmic secrets" from top US AI companies, urging government intervention. He highlighted China's history of industrial espionage and the high value – potentially hundreds of millions of dollars – of seemingly simple code snippets. Amodei advocates for increased collaboration between the US government and AI companies to bolster security at leading AI labs, potentially involving US intelligence agencies and allies. This concern aligns with Amodei's previously expressed worries about China's use of AI for authoritarian and military purposes and his calls for stricter export controls on AI chips to China. His stance has drawn criticism from some who believe US-China collaboration on AI is necessary to prevent an uncontrollable AI arms race.

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Efficient Fine-tuning: A Deep Dive into LoRA (Part 1)

2024-12-25
Efficient Fine-tuning: A Deep Dive into LoRA (Part 1)

Fine-tuning large language models typically requires substantial computational resources. This article introduces LoRA, a parameter-efficient fine-tuning technique. LoRA significantly reduces the number of parameters needing training by inserting low-rank matrices as adapters into a pre-trained model, thus lowering computational and storage costs. This first part explains the principles behind LoRA, including the shortcomings of traditional fine-tuning, the advantages of parameter-efficient methods, and the mathematical basis of low-rank approximation. Subsequent parts will delve into the specific implementation and application of LoRA.

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Slave Ship Mutiny: The Amelia (1811)

2025-09-21

On January 20th, 1811, off the west coast of Africa, enslaved people aboard the illegal slave ship Amelia staged a successful mutiny. Armed with wooden planks, they overpowered the crew and forced the ship back to Africa. This event exposed a vast multinational criminal enterprise, with global repercussions. Unlike the infamous Zong massacre, the Amelia's attempted cover-up was foiled by the captives' rebellion.

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srsRAN: Open Source 4G/5G Software Defined Radio

2025-01-05
srsRAN: Open Source 4G/5G Software Defined Radio

srsRAN is an open-source collection of 4G and 5G software radio applications developed by SRS. Implemented in portable C++ with minimal third-party dependencies, srsRAN runs on Linux with off-the-shelf compute and radio hardware. The srsRAN Project features a complete O-RAN native 5G RAN CU+DU, and a full-stack 4G network implementation covering UE, eNodeB, and EPC. The project is hosted on GitHub with comprehensive documentation and an active community forum.

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Diligent: Hiring Founding AI Engineer to Revolutionize Fintech Risk

2025-05-27
Diligent: Hiring Founding AI Engineer to Revolutionize Fintech Risk

Diligent, a Y Combinator startup, uses AI to automate due diligence for fintechs and banks. They're seeking a Founding AI Engineer to build core agent frameworks, innovate LLM applications in financial services, and directly collaborate with clients. The ideal candidate is a problem-solver with strong coding, system design, and architecture skills, and a passion for language models. Competitive salary, equity, and a fast-paced environment are offered.

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AI

Falsehoods Programmers Believe About Null Pointers

2025-02-01
Falsehoods Programmers Believe About Null Pointers

This article debunks common misconceptions about null pointers. It explores fallacies ranging from the simple (dereferencing a null pointer doesn't always crash the program immediately) to the bizarre (the null pointer's address isn't always 0). The author argues against relying on compiler optimizations or hardware specifics, highlighting the dangers of assuming consistent behavior across platforms. The article emphasizes that C should be treated as a higher-level language, not just "portable assembler," and encourages leveraging modern languages' memory safety features for more robust and portable code.

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Development null pointer

GetHooky: Never Forget to Lint Again!

2025-06-13

Tired of forgetting to run your linter before pushing to production? GetHooky is a cross-platform CLI tool that automatically tests and lints your code on commit or push. It's super easy to use—install once, use anywhere. Works with any project, in any language, and supports all Git hooks. Say goodbye to messy code and hello to efficient development!

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Development

Lunar Photography Guide: From Beginner to Stunning Shots

2025-06-13
Lunar Photography Guide: From Beginner to Stunning Shots

This comprehensive guide covers everything you need to know about photographing the moon, from equipment selection to shooting techniques and post-processing. It walks you through choosing the right camera, lens, and tripod, as well as setting the correct parameters, composition tips, and post-processing techniques. Whether you're a beginner or an experienced photographer, this guide will help you capture stunning lunar images.

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US Electricity Prices Soar: Wholesale Costs and Transmission Bottlenecks

2025-09-19
US Electricity Prices Soar: Wholesale Costs and Transmission Bottlenecks

Since 2020, US electricity prices have skyrocketed by 35%. This article delves into trends in wholesale electricity prices, finding that the increase is linked to both generation costs and transmission bottlenecks. Independent System Operators (ISOs)/Regional Transmission Organizations (RTOs) manage electricity markets using Location Marginal Pricing (LMP), composed of energy, congestion, and losses. Analyzing LMP data across various ISOs/RTOs reveals a significant surge in wholesale electricity prices since 2020, partly due to rising natural gas prices. However, transmission bottlenecks are increasingly significant, hindering the movement of inexpensive electricity from low-cost areas to high-demand regions, amplifying price volatility. California's solar power growth and natural gas supply shortages in certain areas exacerbate transmission congestion.

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Netflix Accidentally Adds Content to Apple TV App, Then Quickly Removes It

2025-02-14
Netflix Accidentally Adds Content to Apple TV App, Then Quickly Removes It

On Thursday, Netflix accidentally added some of its content to the Apple TV app, sparking online excitement and speculation. However, a Netflix spokesperson confirmed it was an error and the content has since been removed. While briefly available, the content primarily consisted of Netflix originals like Stranger Things and The Crown, but suffered from significant bugs. Features such as incomplete seasons, broken watchlists, and unreliable 'Continue Watching' functionality were reported. The incident is speculated to be a result of an internal test gone public. For now, Netflix content remains exclusive to its own app.

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Tech

POSH is Hiring an Energy Analysis & Modeling Engineer

2025-02-21
POSH is Hiring an Energy Analysis & Modeling Engineer

POSH, a company revolutionizing the battery energy storage industry with innovative solutions for commercial and industrial applications, is seeking an Energy Analysis & Modeling Engineer. This role involves developing, analyzing, and optimizing energy storage models to improve system performance, efficiency, and cost-effectiveness. Ideal candidates will possess a Bachelor's or Master's degree in Electrical Engineering, Mechanical Engineering, Energy Systems, or a related field, along with 2+ years of experience in energy modeling or battery storage system analysis. Proficiency in Python and other simulation software is essential. Responsibilities include developing energy models for battery storage and hybrid systems, performing technical and economic analysis, collaborating with hardware and software teams, and working with sales to generate proposals. POSH offers a competitive salary, benefits, and equity participation.

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Spotify's Pirate Secret: From P2P to Streaming Giant

2025-02-28

Spotify's success story has a little-known secret: in its early beta phase, it used unlicensed MP3s from pirate sites like The Pirate Bay! Rasmus Fleischer, a former member of The Pirate Bay, reveals that Spotify's beta was essentially a "pirate service," leveraging unlicensed music from employees' hard drives to launch the platform. This, combined with Spotify's P2P technology and its free, ad-supported model, successfully attracted millions of former pirates. This revelation highlights Spotify's shrewd early strategy and its complex relationship with the piracy wave.

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Tech

The Elusive Cross-Platform Timer API: A Journey Through OS APIs

2025-02-06

This article explores the challenges of cross-platform timer APIs in C programming. The author discovers that different Unix systems (including Linux, FreeBSD, NetBSD, etc.) handle timers very differently. The POSIX timer_create function, based on signals, presents numerous problems, such as poor interoperability with other OS primitives and signal mask interference. The article delves into the pros and cons of various solutions, including timerfd_create, kqueue, port_create, and io_uring, ultimately concluding that for cross-platform applications, implementing timers in userspace, as libuv does, is a more efficient and reliable approach. Libuv uses a min-heap data structure to manage timers and uses system calls like poll/epoll/kqueue for multiplexing.

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A Lifetime in Milestones: 1976-2075

2025-02-15

This blog post visually chronicles the author's life from birth in 1976 to their 100th birthday in 2075. It's a rich tapestry woven with childhood memories, educational milestones, career highlights, marriage, parenthood, and significant historical events like Reagan's inauguration, the first personal computer, the dawn of the World Wide Web, 9/11, and the iPhone's release. It's a deeply personal and engaging journey through time.

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Apple's App Store in Brazil: Massive Revenue, Regulatory Battles

2025-09-09
Apple's App Store in Brazil: Massive Revenue, Regulatory Battles

A new study reveals that Apple's Brazilian App Store generated R$63.8 billion (approximately $11.7 billion) for Brazilian developers last year, with 90% of that revenue commission-free. Despite this, Apple faces ongoing regulatory pressure in Brazil, navigating an antitrust lawsuit from MercadoLibre and court orders mandating sideloading and alternative payment methods. Apple is working with CADE, Brazil's competition watchdog, to delay enforcement and highlight the App Store's positive impact on Brazilian developers and the economy.

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Tech

Solving LinkedIn Queens with SMT: Easier Than SAT!

2025-06-12
Solving LinkedIn Queens with SMT: Easier Than SAT!

This post details solving the 'LinkedIn Queens' puzzle—a variation of the classic N-Queens problem with added regional constraints—using the SMT solver Z3. The author demonstrates that expressing the problem in SMT, leveraging integer variables and constraints, is significantly simpler than the equivalent SAT formulation which requires many boolean clauses. While SMT solvers might be slower than highly optimized SAT solvers like Glucose, the ease of encoding makes SMT preferable for many. The post includes complete code and helpful sanity checks to verify the model's correctness. This provides a compelling explanation for the industry's preference for tools that compile to SAT rather than using SAT directly.

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Development SMT solver

Efficiently Detecting Enclosed Spaces in a Browser Game

2025-02-07
Efficiently Detecting Enclosed Spaces in a Browser Game

In a browser game, players place obstacles to hinder enemies. To prevent players from cheating by enclosing themselves or enemies, the author designed an efficient algorithm to detect enclosed spaces. The initial brute-force approach—flood filling from every cell—proved too slow. The author devised an improved algorithm that leverages a cache of "open-faced" cells (cells not surrounded by obstacles) to prune the flood fill search space. When obstacles are added or removed, the algorithm updates the open-faced cell set and recalculates legal placement locations. While the worst-case time complexity remains the same as brute-force flood fill, in practice, this algorithm significantly reduces lag. The author also discusses other optimization tricks, such as iterative updates and checking only cells adjacent to multiple obstacles. Finally, the author mentions another possible solution: a cycle detection-based algorithm.

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