PyCA Cryptography's New ASN.1 API: Speed and Security

2025-04-18

The PyCA Cryptography team is developing a new ASN.1 API using a pure Rust parser for significantly improved performance and reduced security risks from differences with other ASN.1 parsers. The new API also features a declarative dataclasses-style interface for improved code readability and maintainability. This addresses shortcomings in existing Python ASN.1 libraries regarding performance and security, and better supports emerging ecosystems like Sigstore.

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Development

arXivLabs: Experimental Projects with Community Collaboration

2025-08-07
arXivLabs: Experimental Projects with Community Collaboration

arXivLabs is a framework for 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 who share these commitments. Got an idea to enhance the arXiv community? Explore arXivLabs.

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Development

Millions of CT Scans Linked to Increased Cancer Risk

2025-04-19
Millions of CT Scans Linked to Increased Cancer Risk

A new study from UC San Francisco reveals that CT scans may be responsible for up to 5% of all annual cancers. The study, published in JAMA Internal Medicine, estimates that the 93 million CT scans performed in 2023 in the US could lead to nearly 103,000 cancer cases—three to four times higher than previous estimates. Infants and children face the greatest risk, but adults are also vulnerable due to higher scan frequency. Researchers urge a reduction in both the number and dosage of CT scans to mitigate this significant health concern. While CT scans are invaluable for diagnosis, the ionizing radiation they emit is a known carcinogen. The study highlights the need for better informed consent and reduced overuse of CT scans.

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Tech

Erica Synths Opensources its DIY Eurorack Modules

2025-04-06
Erica Synths Opensources its DIY Eurorack Modules

Following the discontinuation of its legacy DIY eurorack projects, Erica Synths has decided to open-source them. They've provided Gerber files for PCB-made front panels and made slight design changes to eliminate custom and rare components (though some modules still require rare ICs available at www.ericasynths.lv). Each folder contains complete build information and files: schematics, front panel Gerber files, PCB Gerber files, BOMs, component placement with values and designators, and assembly manuals (note that some manuals are for older module versions). Erica Synths permits third-party use for personal, educational, or commercial purposes, but will provide no support; refer to forums (www.muffwiggler.com) for build nuances, troubleshooting, part availability, and alternatives. Open-sourced modules include: Bassline, BBD delay/flanger, Delay, Dual VCA, Envelope, MIDI-CV, Mixer, Modulator, Output, Polivoks VCF, Swamp, and VCO3.

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Hardware

CarPlay Ultra: Apple's Deep Integration with Automakers

2025-05-15
CarPlay Ultra: Apple's Deep Integration with Automakers

Apple unveiled CarPlay Ultra, the next generation of CarPlay, offering a deeply integrated experience between iPhone and the car for a smarter, safer drive. Launching first with Aston Martin vehicles, CarPlay Ultra will expand to other automakers including Hyundai, Kia, and Genesis. It features full-screen information across all displays, including the instrument cluster, and offers extensive customization options. Apple collaborated closely with automakers to create unique, brand-specific CarPlay Ultra interfaces, resulting in a more seamless and immersive in-car experience.

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David Hilbert's Radio Address: A Manifesto on Mathematical Problems

2025-05-14

In 1930, renowned mathematician David Hilbert delivered a powerful speech in Königsberg, asserting that every mathematical problem is solvable, challenging a prevalent and controversial opposing view. This article explores the context of Hilbert's radio address, including his earlier work and the prevailing philosophical and mathematical cultural trends. The speech's audio recording, along with the German original and an English translation, will be provided for readers to delve into the thoughts of this mathematical giant and his lasting impact on mathematical research.

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Massive City Data Analysis Requests: A Large-Scale Data Science Project

2025-04-13

This list comprises a large number of city data analysis requests, covering vaccination rates, flood risk assessments, correlations between diseases and environmental factors, renewable energy adoption rates, transportation impacts, housing prices, crime rates, education funding, air quality, and more. These requests span numerous neighborhoods across multiple US cities, requiring extensive data collection and analysis—a massive data science undertaking.

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Misc

Italian Gov't Suspected of Mass Surveillance on Journalists Using Israeli Spyware

2025-06-12
Italian Gov't Suspected of Mass Surveillance on Journalists Using Israeli Spyware

Citizen Lab's new report reveals that government spyware from Israeli surveillance tech provider Paragon was used to hack at least two European journalists, including Italian journalist Ciro Pellegrino. This follows WhatsApp's earlier notification to roughly 90 users about Paragon's 'Graphite' spyware. The findings further implicate the Italian government in a potential mass surveillance operation. While Italy's parliamentary committee COPASIR denies targeting journalists, new forensic evidence challenges this claim, sparking a political controversy over the government's use of spyware and its implications for freedom of the press.

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A Hagiography of Nine Inch Nails and their Mystical Guitarist

2025-03-15
A Hagiography of Nine Inch Nails and their Mystical Guitarist

This essay is a deeply personal reflection on the author's 25-year relationship with Nine Inch Nails, focusing on the band's music and the mystical aura surrounding their guitarist, Robin Finck. The author explores themes of rage, sexuality, and mysticism within NIN's work, detailing Finck's unique stage presence and playing style as a form of ecstatic experience. The writing process is likened to creating a hagiography, weaving together personal experiences of music, identity, and spiritual exploration into a compelling cultural critique and personal narrative. It's a captivating read for anyone interested in music, identity, or the power of artistic expression.

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Misc

arXivLabs: Experimenting with Community Collaboration

2025-04-21
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 share arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those 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

Harvard Rejects Federal Government's Attempt to Control Academic Freedom

2025-04-14
Harvard Rejects Federal Government's Attempt to Control Academic Freedom

Harvard University President Alan Garber issued a letter strongly condemning the federal government's attempt to interfere with the university's academic freedom and internal governance under the guise of combating antisemitism. The government's demands go beyond addressing antisemitism, encompassing direct control over Harvard's intellectual environment, including auditing viewpoints and limiting the power of specific individuals. Harvard argues these demands violate the First Amendment, exceed the government's authority under Title VI, and refuses to comply, vowing to defend its academic independence and constitutional rights. Harvard reaffirms its commitment to fighting antisemitism while upholding academic freedom and open inquiry.

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A Journey to Optimize Cloudflare D1 Database Queries

2025-04-07
A Journey to Optimize Cloudflare D1 Database Queries

A frontend developer encountered performance bottlenecks while using Cloudflare Workers and the D1 database. By monitoring the D1 dashboard, examining query statements, and analyzing row read/write counts, they identified several key issues: slow single queries, inefficient batch writes, unnecessary row reads due to including IDs in update operations, full table scans from count queries, Cartesian product explosions from multi-table joins, and suboptimal bulk inserts. Solutions involved leveraging D1 batch operations, excluding IDs from updates, implementing cursor-based pagination, splitting multi-table join queries, and optimizing bulk insert statements. These optimizations drastically improved query performance, reducing execution time from 78ms to 14ms in some cases. The experience highlights the importance of continuous monitoring, iterative optimization, and the crucial differences between server-side and client-side performance issues.

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Development database optimization

Founding Applied AI Engineer at Kastle: Revolutionizing Mortgage Servicing with AI

2025-03-16
Founding Applied AI Engineer at Kastle: Revolutionizing Mortgage Servicing with AI

Kastle, an AI-powered platform serving major US mortgage lenders, seeks a Founding Applied AI Engineer. With backing from Y Combinator and other prominent investors, Kastle is redefining loan servicing. This role requires 3+ years of experience in applied AI, proficiency in Python and deep learning frameworks, and experience fine-tuning LLMs. Responsibilities include integrating AI into their platform, designing AI workflows, ensuring regulatory compliance (FDCPA, RESPA, TILA), and optimizing for performance and scalability. This is a unique opportunity to build the foundation of a rapidly growing AI startup.

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AI

Rapid Storage: Sub-Millisecond Latency Storage Built on Colossus

2025-04-10
Rapid Storage: Sub-Millisecond Latency Storage Built on Colossus

Google's Rapid Storage leverages the Colossus architecture to achieve an incredible 20 million requests per second throughput, providing sub-millisecond latency for reads and writes, particularly beneficial for AI/ML applications. Using gRPC streaming and a stateful protocol, Rapid Storage dramatically improves data access efficiency, preventing storage latency from blocking accelerators during model pre-training, for example. Its robust fault tolerance ensures data consistency and continuity even with client or server failures, enabling unlimited appends and resuming interrupted operations. This makes it a powerful solution for large-scale data processing.

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Tech

AutoGenLib: The Python Library That Generates Code On-Demand

2025-05-15
AutoGenLib: The Python Library That Generates Code On-Demand

AutoGenLib is a Python library that leverages OpenAI's API to dynamically generate code. Import a non-existent module or function, and AutoGenLib creates it based on your high-level description. It's context-aware, progressively enhances existing modules, analyzes calling code for better context, and even handles exceptions with suggestions. Quickly generate functions like TOTP generators and data processors, but remember: it requires internet access and relies on the OpenAI API; generated code needs review before production use.

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Development

Debunking the Airplane Lift Myth: The Bernoulli Fallacy

2025-04-23
Debunking the Airplane Lift Myth: The Bernoulli Fallacy

The common explanation for airplane lift using Bernoulli's principle—faster air over the top, lower pressure, thus lift—is fundamentally flawed. This article argues that this "equal transit time" fallacy, while simple and intuitive, neglects crucial factors like viscosity, entrainment, and the Coanda effect, and violates Newton's third law. Lift primarily results from the downward deflection of air by the wing, a consequence of Newton's third law; even symmetrical airfoils generate lift. While Bernoulli's equation itself isn't wrong, its application in explaining lift often involves erroneous assumptions and additions.

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90-Day Mars Trips with SpaceX Starship: A New Trajectory

2025-06-05
90-Day Mars Trips with SpaceX Starship: A New Trajectory

A new study proposes that human missions to Mars using existing SpaceX Starship technology could be shortened to just 90-104 days, significantly reducing the traditional 6-9 month transit time. By optimizing trajectories, the study outlines two new ballistic paths that avoid the need for expensive and complex nuclear propulsion. While challenges remain, including Starship reliability and the construction of Martian refueling infrastructure, this approach offers a promising pathway towards faster and more economical Mars exploration.

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Git's 20th Anniversary: From Humble Beginnings to Version Control Domination

2025-04-07
Git's 20th Anniversary: From Humble Beginnings to Version Control Domination

Twenty years ago today, Linus Torvalds made the first commit to Git. Since then, it's become the dominant version control system. This article recounts Git's early history, from its origins as a tool to address version control and collaboration challenges in the Linux kernel community, to its evolution into the powerful system we know today. Author Scott Chacon shares his personal journey with Git, explaining how it transformed from a simple "stupid" content tracker into a feature-rich VCS that reshaped software development. The story also delves into the origins of some core Git commands and the birth of GitHub's iconic Octocat.

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Development

Tar Format Showdown: Which One Reigns Supreme?

2025-07-07

This article delves into a comprehensive compatibility test of various tar formats (v7, ustar, pax, GNU, etc.). The results reveal that POSIX ustar boasts the best compatibility, while GNU excels with long paths and large files. Pax, although feature-rich, suffers from poor compatibility. The author recommends prioritizing ustar, using GNU for long paths and large files when necessary, and exercising caution with pax's extended features to ensure maximum compatibility.

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Beyond NP: A More Intuitive Complexity Problem

2025-04-17
Beyond NP: A More Intuitive Complexity Problem

The author challenges the use of the Halting Problem as the canonical example of a problem harder than NP-complete, arguing it's confusing and unintuitive. While undecidable, verifying a "yes" answer for the Halting Problem can be done by running the program for a finite number of steps. A more easily understandable alternative is presented: moving a token on an infinite grid to reach a target point. This problem is PSPACE-complete in lower dimensions, but its complexity explodes with increasing dimensions, eventually reaching ACKERMANN-completeness, visually demonstrating a complexity far beyond NP problems.

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Bungie's Content Vault: A Digital Black Hole?

2025-03-02
Bungie's Content Vault:  A Digital Black Hole?

In a bizarre twist in a copyright lawsuit, Bungie is unable to provide the court with evidence of early Destiny 2 content, including the Red War campaign, due to its “content vault” system. This reveals the vault isn't simply storage; it functions more as a content shredder, inaccessible even to Bungie itself. This explains the scarcity of returning original Destiny 2 content, while remakes of Destiny 1 content are more common. Unless significant effort is made, the content within the vault is likely lost forever.

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Trump's Foreign Aid Freeze: A Tuberculosis Time Bomb?

2025-04-06
Trump's Foreign Aid Freeze: A Tuberculosis Time Bomb?

The Trump administration's January 2025 freeze on foreign aid, implemented by Elon Musk's Department of Government Efficiency, has jeopardized global tuberculosis control. John Green's new book, *Everything is Tuberculosis*, explores the disease's history and its connection to societal biases. Historically romanticized, TB now devastates impoverished communities. The aid freeze, coupled with battles over TB drug patents, highlights medical inequities and threatens a resurgence of this preventable disease, endangering millions worldwide.

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Open Source PebbleOS Lives On: SiFli Chip Powers Core Time 2

2025-05-14
Open Source PebbleOS Lives On: SiFli Chip Powers Core Time 2

This post, the first in a series on building a smartwatch, details the selection of the SiFli SF32LB52J chip for the Core Time 2 smartwatch. The author recounts past experiences with the STM32F2 in original Pebble watches, highlighting the crucial considerations of software compatibility, power consumption, and cost when choosing a microcontroller unit (MCU). The SiFli chip ultimately won out due to its 512KB SRAM, 16MB PSRAM, low power consumption, and open-source SDK, breathing new life into the open-source PebbleOS ecosystem.

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Hardware chip selection

Native Twitch App Built with SwiftUI and C++ Interop: A Deep Dive into Kulve's Tech Stack

2025-04-22

Kulve is a native Twitch application built using SwiftUI and C++ interoperability, leveraging Swift 5.9's features for a cross-platform, high-performance experience. The backend utilizes CMake and VSCode for development, ensuring cross-platform compatibility, while the frontend employs Xcode and SwiftUI for the UI. C++ handles low-level tasks like threading, asynchronous networking, and runtime, while Swift focuses on UI rendering. The article details a clever memory management scheme using Swift wrappers around raw C++ pointers to prevent leaks and boost performance, enabling Kulve to efficiently handle large datasets, such as embedding databases within chat messages.

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Development

AI Revolutionizes Video Creation: Yarn is Hiring Top Engineers

2025-06-25
AI Revolutionizes Video Creation: Yarn is Hiring Top Engineers

Yarn, a startup, is revolutionizing video creation with AI. Their innovative technology combines AI with video production, making compelling videos 100x faster. Backed by investors like Y Combinator and collaborating with companies like Clay and Shopify, Yarn is hiring experienced engineers in NYC. They're looking for individuals to build core agent workflows, develop AI-powered collaborative editing tools, and prototype cutting-edge AI models.

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Development Video Production

Ruby Namespaces: A Critical Look at a Proposed Implementation

2025-05-12

This blog post questions a proposed implementation of namespaces in Ruby. The author argues that the proposal aims to solve problems like library name clashes, globally shared modules, and multiple gem versions, but these issues are not frequently encountered in practice. The complexity introduced by the proposal, such as deduplication, might outweigh its benefits. The author prefers a lighter-weight approach, such as restricting constant access and providing a BasicObject-like mechanism to improve code maintainability and modularity.

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Development Namespaces Modularity

A Nostalgic Look at MS-DOS Word

2025-04-27
A Nostalgic Look at MS-DOS Word

This retrospective dives into the history of Microsoft Word on MS-DOS, tracing its evolution from a non-WYSIWYG editor to the final Word 6.0. The author recounts their experiences using Word in the DOS environment, covering its interface, features, comparisons with competitors like WordPerfect, and file compatibility challenges. Ultimately, the review praises Word 5.5/6.0's practicality for DOS users needing a text editor and system file manager, showcasing a fondness for this classic piece of software.

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Reversing Biological Time: Shinya Yamanaka and iPS Cells

2025-04-17
Reversing Biological Time: Shinya Yamanaka and iPS Cells

This article recounts the journey of Japanese scientist Shinya Yamanaka, who, driven by his father's death from an incurable disease, transitioned from orthopedic surgery to medical research. Through ingenious experimentation and relentless perseverance, he successfully reprogrammed adult cells into induced pluripotent stem cells (iPS cells), a groundbreaking achievement that earned him the Nobel Prize and revolutionized disease research and treatment. The article details the scientific process, highlighting the challenges and rigorous validation required to establish the iPS cell's capabilities.

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Tech

1964: Was it Really a Musical Turning Point? Data Reveals the Truth

2025-03-15
1964: Was it Really a Musical Turning Point? Data Reveals the Truth

This article uses Billboard chart data to investigate whether 1964 was truly a watershed year for popular music, as many claim. Analyzing 175 acts that charted in the top 40 in 1963, the author finds that half never had another top 40 hit after 1964. However, this wasn't unique to 1964; similar trends appeared in other years. The article argues that while the British Invasion significantly impacted the music landscape, the US music scene was also undergoing its own evolution. The piece also features the remarkable longevity of Frankie Valli, along with song recommendations from Doechii and The Newbeats.

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