NYU 2024 Admissions Data Leak: Analysis of Admission Standards Post-Affirmative Action Ban

2025-03-22

A top-secret leak of New York University (NYU) 2024 admissions data reveals that NYU may have continued using race-based admissions criteria after the Supreme Court ruled affirmative action in college admissions illegal. The leaked data, including average SAT, ACT, and GPA scores for different racial groups, raises questions about the fairness of college admissions. The data has been mirrored on Proton and MEGA.

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The Evaporative Cooling Effect in Social Networks: Why High-Value Contributors Leave

2025-01-07

This blog post explores the 'evaporative cooling effect,' where high-value contributors leave a community due to lack of benefit, leading to a decline in community quality. It analyzes how factors like openness, community access mechanisms (e.g., paid membership or knowledge barriers), internal communication styles, and rewarding high contributors affect this effect. The author argues that 'evaporative cooling' is inevitable in community growth, and the key is to slow it down. The post suggests combining 'plaza' (easily expandable) and 'warren' (more stable) community structures to balance scalability and stability.

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Former Twitter Founder Launches Mozi, a Social App Focused on Offline Connections

2024-12-12
Former Twitter Founder Launches Mozi, a Social App Focused on Offline Connections

Ev Williams, founder of Twitter and Medium, has launched a new social app called Mozi, aiming to redefine the essence of social interaction. Unlike content-focused social media, Mozi prioritizes helping users build and maintain relationships with people in their real lives. By integrating with users' contact lists, it shows when users and their acquaintances will be in the same location (city or event), facilitating offline meetings. Mozi emphasizes privacy, lacking public profiles and follower counts, aiming to be a private platform promoting genuine social connections.

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Unification Algorithm: Implementation and Applications

2025-08-18

This post delves into the unification algorithm, a process for automatically solving equations between symbolic terms. It finds extensive use in logic programming and type inference. Starting with pattern matching, the post builds up to the concept of unification, providing a Python implementation based on Norvig's improved algorithm. The implementation includes data structure definitions, the core `unify` function, helper functions `unify_variable` and `occurs_check`, along with detailed code examples and execution results.

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Development unification

diffsitter: Semantic Code Diff Tool

2025-07-11
diffsitter: Semantic Code Diff Tool

diffsitter is a code diff tool that generates semantically meaningful diffs by comparing the Abstract Syntax Trees (ASTs) of files, ignoring formatting differences. It supports numerous programming languages and offers features like configurable node filtering, terminal-friendly formatting, and detailed logging. Installation options include building from source, using pre-built binaries, and package managers.

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Parse, Don't Validate: Enhancing C Security with Type Safety

2025-07-13

This post advocates for a 'Parse, Don't Validate' approach in C programming. By defining custom types (e.g., email_t, name_t) and parsing untrusted input into these types immediately, the inherent risks of pointer manipulation and type mismatches in C are mitigated. This strategy confines raw string handling to the system's boundaries, prevents internal function misuse, and leverages the compiler's type checking to catch errors like parameter swapping. The result is more robust and maintainable C code with reduced attack surface.

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Development

Benchi: A Lightweight Docker-based Benchmarking Framework

2025-04-03
Benchi: A Lightweight Docker-based Benchmarking Framework

Benchi is a minimal benchmarking framework leveraging Docker to create isolated environments for measuring application and infrastructure performance. It simplifies the benchmark setup and execution process, supporting Docker Compose for environment definition, CSV metric export, custom hooks, and real-time monitoring of container statuses and metrics. Installation is flexible, offering Go and shell script options. Detailed configuration and usage examples cover metric collectors, test step definition, and Docker Compose integration, streamlining performance testing and analysis.

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Development

Trump Admin Admits to Wrongfully Deporting Protected Salvadoran Man

2025-04-01
Trump Admin Admits to Wrongfully Deporting Protected Salvadoran Man

The Trump administration admitted in a court filing to mistakenly deporting Kilmar Abrego Garcia, a Maryland father with protected legal status, to El Salvador. Garcia received "withholding of removal" in 2019, signifying a high likelihood of harm if returned. Despite ICE's knowledge of his protected status, an administrative error led to his deportation. Now held in El Salvador's grim "Terrorism Confinement Center," the government claims the court lacks jurisdiction to order his return. His attorney argues that if the government can deport anyone at will with no judicial recourse, immigration laws become meaningless.

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Adorable Dog Sim: Blender Studio's Free Open-World Game

2025-07-15
Adorable Dog Sim: Blender Studio's Free Open-World Game

Blender Studio released 'Dogwalk,' a free, open-world game where you play a big dog helping a child build a snowman in a winter wonderland. The game features a unique aesthetic built from scanned and recreated real-life paper models. Explore camping grounds, forests, creeks, and a frozen pond, interacting with the child in various ways. There are no fail states, only player-driven moments. 'Dogwalk' was used to test and improve Blender and the Godot Game Engine; all source files and documentation are open-source.

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Game

arXivLabs: Experimenting with Community Collaboration

2025-02-13
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 is committed to these values and partners only with those who share them. Have an idea to improve the arXiv community? Learn more about arXivLabs.

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Development

A Blast from the Past: Exploring Vintage Optical Media from Japan

2025-04-02
A Blast from the Past: Exploring Vintage Optical Media from Japan

The author documents their journey collecting vintage optical media from Japan, both online and in person. The article details several brands of DVDs and CDs, including TDK, LG, Sony, Maxell, Mitsubishi, and Fujifilm, testing their performance across various metrics. Tests included burn speeds, read speeds, error rates, and physical characteristics. TDK's UV-protected discs performed exceptionally well, while an older Maxell CD-R showed signs of age-related degradation. The experience is a nostalgic trip down memory lane, showcasing the evolution of optical media technology and manufacturing across different eras and brands.

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Abundance: A Critique of Ezra Klein and Derek Thompson's Manifesto

2025-04-02
Abundance: A Critique of Ezra Klein and Derek Thompson's Manifesto

Ezra Klein and Derek Thompson's *Abundance* argues that the US government is inefficient and needs to prioritize providing more resources like housing, clean energy, and high-speed rail. While the book effectively highlights the flaws of current systems, particularly in housing where zoning regulations hinder development, it lacks a concrete policy agenda. The authors' call for 'abundance' is too broad, failing to address crucial trade-offs and the potential for abuse of power in streamlining processes. The hypocrisy of figures like Marc Andreessen, advocating for building while opposing multi-family housing near his home, underscores the book's shortcomings. Ultimately, *Abundance* avoids the messy realities of politics and policy-making, leaving the reader with inspiring rhetoric but little practical guidance on achieving its ambitious goals.

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Rocky Linux Hardened: Enterprise-Grade Linux Bolstered for Mission-Critical Systems

2025-03-21
Rocky Linux Hardened: Enterprise-Grade Linux Bolstered for Mission-Critical Systems

Rocky Linux Hardened, from CIQ, is optimized for mission-critical environments demanding robust security. Delivered via a secure supply chain, it features memory corruption detection, kernel integrity checking, enhanced password policies, and SSH restrictions. This minimizes zero-day and CVE risks by reducing attack surfaces and common exploit vectors. Advanced threat detection utilizes Linux Kernel Runtime Guard (LKRG) to identify sophisticated intrusions. Security threats are addressed proactively, minimizing exposure time. Strong access controls are implemented via advanced password hashing, strict authentication, and hardened access. Pre-hardened systems streamline deployment, saving time and resources. Compatibility simplifies migration from other Enterprise Linux distributions, reducing vendor lock-in.

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arXivLabs: Community Collaboration on arXiv Features

2025-05-16
arXivLabs: Community Collaboration on arXiv Features

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved share arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners who adhere to them. Got an idea for a project that will benefit the arXiv community? Learn more about arXivLabs.

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Development

Douglas Hofstadter Slams GPT-4's 'Why I Wrote GEB?' as 'Fake' and Expresses Concerns about LLMs

2025-03-15
Douglas Hofstadter Slams GPT-4's 'Why I Wrote GEB?' as 'Fake' and Expresses Concerns about LLMs

Douglas Hofstadter, a pioneer in AI, strongly criticizes a GPT-4-generated text, 'Why I Wrote GEB?', purportedly summarizing his seminal work, Gödel, Escher, Bach. He argues the text is filled with generic platitudes, drastically misrepresenting his writing style and the book's genesis. Hofstadter highlights the LLM's lack of originality and its fabrication of a false narrative. He details the actual creative process behind GEB, from his initial fascination with Gödel's incompleteness theorem to the integration of Escher and Bach, revealing the genuine inspirations and struggles. He expresses serious concerns about the proliferation of LLMs and their potential to flood the world with falsehoods, urging a critical assessment of their inherent dangers.

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AI

Fighting Search Engine Spam: A Powerful Blocklist

2025-01-14
Fighting Search Engine Spam: A Powerful Blocklist

The GitHub project `BadWebsiteBlocklist` offers a powerful filter to block spam and misleading websites from appearing in search results. It aims to clean up search results by removing AI-generated low-quality articles, spam sites, and thinly-veiled advertisements posing as information. The filter is used via the uBlocklist extension; users simply add a subscription link to enable it. The project encourages users to submit spam websites and provides explanations for each blocked site, ensuring transparency and sustainability.

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Development spam filtering

Groundwater Pumping Tilts Earth's Rotation by 31.5 Inches

2025-07-26
Groundwater Pumping Tilts Earth's Rotation by 31.5 Inches

A new study reveals that groundwater pumping has caused a significant shift in Earth's rotation axis, approximately 31.5 inches over recent decades. This equates to 0.24 inches of sea-level rise. Researchers found that the redistribution of groundwater has the largest impact on the drift of Earth's rotational pole, explaining previously unexplained variations in Earth's rotation. The study highlights the significant impact of groundwater extraction on climate change and sea-level rise, offering crucial insights for future water management and climate change mitigation.

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Tech

Exa: Building the Next-Gen AI Chips - Join the Founding Team!

2025-02-21
Exa: Building the Next-Gen AI Chips - Join the Founding Team!

Exa is building the next generation of AI chips, aiming to surpass current market leaders. Their novel polymorphic XPU chips self-reconfigure for optimal dataflow, supporting AGI and ASI while drastically reducing energy consumption. They're seeking exceptional engineers to join their founding team and build revolutionary technology with lasting impact for centuries.

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Hardware Job Opportunity

Creative Projects: From Photography Portfolios to Quantum Data Viz

2025-07-12
Creative Projects: From Photography Portfolios to Quantum Data Viz

This list showcases a diverse range of creative projects, including building a professional portfolio website for a Boston-based photographer, creating a data visualization of quantum computer research findings, 3D modeling a globe, designing a gorgeous liquid glass calendar modal, building a Mario level, and crafting a UI designer website with React Three Fiber animations and elegant transitions. These projects span web design, data visualization, 3D modeling, and game development, demonstrating a breadth of creative and technical skills.

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EU's DMA Opens the Floodgates for Alternative iOS App Stores

2025-03-14
EU's DMA Opens the Floodgates for Alternative iOS App Stores

The European Union's Digital Markets Act (DMA) has unleashed a wave of alternative app stores for iOS users in the EU. Developers are seizing the opportunity, launching options like AltStore PAL, Setapp Mobile, Epic Games Store, Aptoide, and Mobivention, offering users choices beyond Apple's App Store. These stores cater to diverse needs: AltStore PAL emphasizes open source and developer self-hosting; Setapp Mobile offers curated subscription apps; Epic Games Store and Aptoide focus on games; and Mobivention targets enterprise internal apps. While Apple charges fees, the DMA's impact has broken Apple's App Store monopoly, creating opportunities for users and developers alike.

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Rust Linear Algebra Library: lin-alg

2025-03-06
Rust Linear Algebra Library: lin-alg

lin-alg is a Rust linear algebra library providing vector, matrix, and quaternion data structures and operations, supporting f32 and f64 types. It's suitable for computer graphics, biomechanics, robotics, and more. The library supports no_std environments and offers computer graphics functionalities and bincode encoding/decoding. Note: Do not use `cargo fmt` on this codebase.

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Development Linear Algebra

Spotify Shuts Down Artist Royalty Calculator Amidst Executive Stock Sell-Off

2024-12-28
Spotify Shuts Down Artist Royalty Calculator Amidst Executive Stock Sell-Off

Spotify CEO Daniel Ek's wealth soared this year after significant stock sales, while a calculator exposing Spotify's low artist payouts—Spotify Unwrapped—was shut down due to legal threats. The calculator highlighted the stark contrast between exorbitant executive compensation and meager artist earnings. Although the calculator is gone, its formula remains public, fueling debate about streaming service payment models. Meanwhile, multiple Spotify executives cashed out over $1.25 billion in 2024, following widespread layoffs and premium price hikes.

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Storing Times for Human Events: Best Practices and Challenges

2024-12-12
Storing Times for Human Events: Best Practices and Challenges

This blog post discusses best practices for storing event times on event websites. The author argues that directly storing UTC time loses crucial information, such as the user's original intent and location. A better approach is to store the user's intended time and the event location, then derive the UTC time. Examples like user error, international timezone adjustments, and the 2007 Microsoft Exchange DST update illustrate the importance of storing the user's intended time. The author recommends designing a clear and user-friendly interface to help users accurately set event times and locations, emphasizing the importance of maintaining the user's original intent to avoid errors caused by timezone changes.

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Maker Builds Laser Shooting Game: From Legoland Ride to ESP32-Powered Halloween Fun

2024-12-13
Maker Builds Laser Shooting Game: From Legoland Ride to ESP32-Powered Halloween Fun

Inspired by a Legoland Egyptian adventure ride, the author decided to create a similar shooting game. Using inexpensive ESP32 microprocessors, infrared laser guns, and homemade targets, he successfully built a Halloween-themed shooting game. Along the way, he learned Arduino and MicroPython programming, overcoming challenges in hardware connections, power supply, and communication. The game was a hit at school and home events. Future plans include improving target design, lighting effects, and circuit boards to enhance the gaming experience.

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Development Maker

Improving F# Error Handling: Introducing FaultReport

2024-12-22

This article critiques the shortcomings of F#'s Result type in error handling, highlighting inconsistencies in error types and the problems stemming from using strings as error types. The author proposes FaultReport as an alternative, using an IFault interface to standardize error types and a Report<'Pass', 'Fail> type to represent operation outcomes, where 'Fail must implement IFault. This ensures consistent and type-safe error handling, avoiding the inconveniences of string-based errors. FaultReport further provides Report.generalize for upcasting and a FailAs active pattern for downcasting, facilitating handling of diverse error types. While replacing FSharp.Core's Result is a significant undertaking, the author argues that FaultReport's design offers a valuable improvement to F#'s error handling.

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Development

Waymo's First International Road Trip: Tokyo Bound

2024-12-17
Waymo's First International Road Trip: Tokyo Bound

Waymo is bringing its autonomous vehicles to Tokyo in early 2025, partnering with Nihon Kotsu and GO. This marks Waymo's first international expansion, challenging its self-driving system with left-hand traffic and Tokyo's dense urban environment. The company will collaborate with local partners and officials to understand the local landscape and ensure safe implementation. This aligns with Japan's vision for future transportation, and Waymo will work closely with regulators to meet safety standards. Initially, Nihon Kotsu drivers will manually operate the vehicles to map key areas of Tokyo.

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Fiverr's New Ad: AI Vibe Coding Needs a Human Touch

2025-08-03
Fiverr's New Ad:  AI Vibe Coding Needs a Human Touch

Fiverr's latest ad campaign playfully tackles the limitations of AI 'vibe coding.' Using the humorous imagery of a squashed avocado, the ad highlights how AI-generated code, while seemingly perfect on the surface, often requires human intervention to truly succeed. While AI lowers the barrier to entry for app and website creation, Fiverr argues that the human element is crucial for taking a project beyond a basic demo and into a fully functional product. This campaign follows a previous controversial ad and aims to reposition Fiverr as a platform that champions the collaboration between AI and human creative talent.

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AI Speeds Up DNA Data Reading, Bringing Practical Use Closer

2025-03-04
AI Speeds Up DNA Data Reading, Bringing Practical Use Closer

Researchers at UC San Diego have developed an AI system called DNAformer that can decode data stored in DNA nearly 90 times faster than previous methods. The system uses a deep learning model to reconstruct DNA sequences, incorporating error correction and data conversion algorithms. It successfully read 100MB of data, including images, audio, and text. This breakthrough promises to accelerate the practical use of DNA data storage, offering new solutions for long-term data preservation.

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Microsoft Tests 45% M365 Price Hike in Asia, Citing AI Features

2025-01-13
Microsoft Tests 45% M365 Price Hike in Asia, Citing AI Features

Microsoft is testing a 45 percent price increase for its M365 suite in six Asian countries, claiming the hike is necessary to ensure customers have early access to powerful AI features. The move has sparked outrage among subscribers, with many accusing Microsoft of price gouging, especially in regions with high living costs. While Microsoft says users can opt for a cheaper plan without AI features like Copilot, finding this option proves difficult. This test may foreshadow global M365 price adjustments, reflecting Microsoft's massive investment in AI.

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Tech

Vibe Coding: Build Apps Without Writing Code

2025-03-01
Vibe Coding: Build Apps Without Writing Code

Say goodbye to complex programming languages! This article explores 'vibe coding,' a revolutionary approach to software development powered by AI. Creators with minimal technical skills can build functional apps, websites, and tools in hours, not months. By simply describing the desired app, AI tools generate the code, debug issues, and iterate based on feedback. The article compares traditional coding, low-code platforms, and vibe coding, detailing the process and showcasing successful examples. Several AI-powered platforms are reviewed, along with limitations and strategies to overcome them. The article concludes by emphasizing the potential for creators to transform their businesses by building and selling tools directly to their audience.

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Development no-code development
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