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Google Abandons Standalone Chrome Third-Party Cookie Prompt

2025-04-22
Google Abandons Standalone Chrome Third-Party Cookie Prompt

In a surprising move, Google has decided against rolling out a standalone prompt for third-party cookies in Chrome. This means ad tech companies can continue using targeting technology in the world's most popular browser, marking a reversal of the Chrome team's July 2022 announcement to deprecate third-party cookies. The decision, attributed to industry feedback, will likely cause significant disruption in the ad tech ecosystem. While Google states that other Privacy Sandbox initiatives will continue, the future of the project's APIs remains uncertain, with Google promising an updated roadmap in the coming months.

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(digiday.com)
Tech Third-party Cookies

Checking for Constant Expressions in C: A Macro Approach

2025-04-22

This article explores various methods for creating a C macro that detects if an expression is a constant expression. The author investigates several techniques, including C23's static compound literals, GNU extension `__builtin_constant_p`, `static_assert`, `sizeof` combined with compound literal arrays, `sizeof` with enum constants, and the comma operator. Each method has its pros and cons; C23 support is limited, `__builtin_constant_p` relies on GNU extensions, `static_assert` and `sizeof` methods might alter the expression's type, and the comma operator generates warnings. The author concludes that a perfect solution is elusive, and the best choice depends on specific needs and the C standard version.

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(nrk.neocities.org)
Development Macro Constant Expression

MemoTTL: A Thread-Safe Memoization Gem for Ruby with TTL and LRU

2025-04-22
MemoTTL: A Thread-Safe Memoization Gem for Ruby with TTL and LRU

MemoTTL is a thread-safe memoization utility for Ruby offering TTL (Time-To-Live) and LRU (Least Recently Used) eviction. It's perfect for caching method results, preventing redundant computations, and managing memory usage. The gem easily integrates via `include MemoTTL` and `memoize`, providing methods to clear the cache. Examples demonstrate its use in a Rails controller, significantly improving performance by avoiding repeated calls to expensive methods.

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(github.com)
Development

From Aversion to Obsession: A Writer's Journey into Biology

2025-04-22
From Aversion to Obsession: A Writer's Journey into Biology

The author once loathed biology, finding it a dry recitation of facts. However, after reading Elizabeth Kolbert's *The Sixth Extinction* and Siddhartha Mukherjee's *The Gene*, he was captivated by the engaging stories and masterful writing, completely changing his perspective on the subject. He embarked on a journey of extensive reading, watching videos, and even taking a bioinformatics course. This experience led him to realize the power of great science writing to transform scientific discoveries into compelling narratives, igniting interest in science. Ultimately, he created Newt Interactive, a website dedicated to making biology accessible to the public through interactive articles and simulators, aiming to share the wonder of biology with a wider audience.

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(nehalslearnings.substack.com)
Tech science writing

Debunking the Myth of High-Degree Polynomials in Regression

2025-04-22
Debunking the Myth of High-Degree Polynomials in Regression

The common belief that high-degree polynomials are prone to overfitting and difficult to control in machine learning is challenged in this article. The author argues that the problem isn't high-degree polynomials themselves, but rather the use of inappropriate basis functions, such as the standard basis. Experiments comparing the standard, Chebyshev, and Legendre bases with the Bernstein basis in fitting noisy data demonstrate that the Bernstein basis, with its coefficients sharing the same 'units' and being easily regularized, effectively avoids overfitting. Even high-degree polynomials yield excellent fits using the Bernstein basis, requiring minimal hyperparameter tuning.

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(alexshtf.github.io)
AI polynomial fitting overfitting Bernstein basis

YC-Backed Startup Recover Seeks Finance Lead

2025-04-22
YC-Backed Startup Recover Seeks Finance Lead

Recover, a Y Combinator-backed startup, is making addiction treatment more effective and accessible for low-income individuals. They're rapidly expanding and searching for an experienced Finance Lead to manage financial reporting, cash management, and compliance. The ideal candidate will have 4+ years of relevant experience, possess systems thinking, strong organizational skills, and problem-solving abilities. This is a full-time, fully remote position offering competitive salary, equity, and PTO.

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(www.ycombinator.com)
Startup finance lead

Apple Adjusts AI Feature Claims Following NAD Inquiry

2025-04-22
Apple Adjusts AI Feature Claims Following NAD Inquiry

Apple has revised its marketing materials for its iPhone 16's AI features, "Apple Intelligence," following a review by the National Advertising Division (NAD). The NAD challenged Apple's claim that these features, including Priority Notifications and Genmoji, were "available now" at launch, noting that some were released in later software updates. Apple, while disagreeing with some findings, agreed to adjust its messaging to accurately reflect the availability of its AI features. A promotional video featuring Siri was also removed.

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(www.theverge.com)
Tech

Morphik: A Revolutionary Multimodal Document Search Engine Beyond Traditional RAG

2025-04-22
Morphik: A Revolutionary Multimodal Document Search Engine Beyond Traditional RAG

Morphik is a revolutionary document search engine that goes beyond traditional Retrieval Augmented Generation (RAG) for highly technical and visual documents. It offers multimodal search (images, PDFs, videos, etc.), knowledge graph creation, fast metadata extraction, and integrations with tools like Google Suite, Slack, and Confluence. Boasting a free tier and an open-source version, Morphik simplifies document ingestion and querying with a Python SDK and REST API. Developers can get started quickly with simple code and a user-friendly web console. While the open-source version has limitations, Morphik is committed to improving speed, integrating more tools, and welcomes community contributions.

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(github.com)
Development multimodal search knowledge graphs

ClickHouse's Lazy Materialization: A 1500x Speed Boost

2025-04-22
ClickHouse's Lazy Materialization: A 1500x Speed Boost

ClickHouse achieves a 1500x speed improvement using a new optimization called "lazy materialization." This technique delays reading column data until it's actually needed, dramatically reducing unnecessary I/O. The article uses the Amazon customer reviews dataset to illustrate how lazy materialization, combined with other I/O optimizations like columnar storage, sparse primary indexes, and PREWHERE, reduces a query's execution time from 219 seconds to 139 milliseconds. Lazy materialization is particularly effective for Top N queries, providing significant performance gains without altering the SQL.

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(clickhouse.com)
Tech Database Optimization Lazy Materialization

A Philosopher's Year with Lab Mice: Challenging Assumptions About Animal Intelligence

2025-04-22
A Philosopher's Year with Lab Mice: Challenging Assumptions About Animal Intelligence

A philosopher's account of living with 25 ex-laboratory mice challenges the simplistic view of mice as mere experimental subjects. Through detailed observation, the author reveals a complex social life, intricate communication, and profound acts of care among the mice. They build elaborate nests, groom each other, nurse the sick, and even collectively bury their dead. This intimate portrait highlights the social intelligence and capacity for compassion in these often-overlooked creatures, leading to a deeper reflection on life, death, and interspecies relationships.

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(nautil.us)
Misc animal ethics lab animals interspecies relationships

The Raccoon That Sold PCs: The Untold Story of PC Connection's Iconic Marketing

2025-04-22
The Raccoon That Sold PCs: The Untold Story of PC Connection's Iconic Marketing

This article recounts the remarkable story of PC Connection, a mail-order computer giant of the 1980s and 90s, and how its unique raccoon-themed ads propelled it to success. Artist Erick Ingraham's charming illustrations, paired with David Blistein's witty copywriting, humanized the small-town New Hampshire company, creating memorable mascot branding. The article details the creation of these ads, the stories behind them, and PC Connection's journey from a small startup to a publicly traded company, ultimately disrupted by the internet. It explores how their quirky marketing strategy, while hugely successful then, is unlikely to work in today's online commerce landscape.

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(technologizer.com)
Startup

David Tong's Theoretical Physics Textbook Series: A Modern Classic?

2025-04-22

Professor David Tong's renowned lecture notes have been transformed into a comprehensive textbook series published by Cambridge University Press. These books expand upon the original notes, offering richer content, clearer explanations, and even correct spellings (Schwarzschild!). They're also affordably priced. Four volumes are currently available, covering a vast swathe of undergraduate and graduate curricula. The series has garnered rave reviews from leading physicists, praised as a modern equivalent to Landau and Lifshitz's classic work.

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(www.damtp.cam.ac.uk)
Development Theoretical Physics Textbook

Formalizing Machine Knitting: Towards Optimizing Compilers via Category Theory

2025-04-22

This blog post explores the surprising connection between machine knitting and theoretical computer science. The author tackles the problem of defining rigorous semantics for machine knitting programs, highlighting the challenge of strand crossings and their impact on program commutativity. By leveraging algebraic topology and the theory of braided monoidal categories, a polynomial-time algorithm for program canonicalization is developed. This enables compiler optimization and opens doors for more sophisticated analysis and design of machine knitting languages. The work bridges programming languages, topology, category theory, and even hints at connections to quantum computing.

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(uwplse.org)
Development machine knitting topology

Graph Transformers: The Next Generation of Graph Models

2025-04-22
Graph Transformers: The Next Generation of Graph Models

Graphs are ubiquitous, but leveraging their complex, long-range relationships has been a challenge for machine learning. Graph Neural Networks (GNNs) excel at capturing local patterns but struggle with global relationships. Enter Graph Transformers, which leverage powerful self-attention mechanisms, enabling each node to directly attend to information from anywhere in the graph, thus capturing richer relationships and subtle patterns. Compared to GNNs, Graph Transformers offer advantages in handling long-range dependencies, mitigating over-smoothing and over-squashing, and more effectively processing heterogeneous data. While Graph Transformers have higher computational complexity, techniques like sparse attention mechanisms and subgraph sampling enable efficient processing of large graph datasets.

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(kumo.ai)
AI Graph Transformers

The Complexity Barrier: How Complex Can We Prove Something To Be?

2025-04-22

This article explores the limits of computational complexity. Mathematicians have discovered a 'complexity barrier': we can't prove any specific bit string's complexity exceeds this barrier. Surprisingly, this barrier is remarkably low, potentially just a few kilobytes. The article also covers the Kritchman-Raz proof of Gödel's second incompleteness theorem and the possibility of computing uncomputable functions in non-standard models of arithmetic, leading to philosophical reflections on the concept of standard natural numbers.

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(math.ucr.edu)
Misc Gödel's incompleteness theorem non-standard models

ElatoAI: Realtime AI Speech on ESP32

2025-04-22
ElatoAI: Realtime AI Speech on ESP32

ElatoAI is an open-source project enabling >10-minute uninterrupted global conversations using OpenAI's Realtime API, ESP32, secure WebSockets, and Deno Edge Functions. Composed of a Next.js frontend, a Deno edge server, and an ESP32 client, ElatoAI allows for custom AI agents, voice selection, and personalization. Features include Opus codec for high-quality audio, low latency, secure communication via WebSockets, and Supabase for user authentication and data storage. The project is actively under development and welcomes contributions.

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(github.com)
Development AI Speech Realtime Conversation

Supabase Raises $200M Series D, Valued at $2B

2025-04-22
Supabase Raises $200M Series D, Valued at $2B

Open-source application development platform Supabase announced a $200 million Series D funding round, bringing its valuation to $2 billion. Accel led the round, with participation from Coatue, Y Combinator, and others. Investors went to extraordinary lengths, with Accel partners even visiting the CEO in New Zealand to finalize the deal. Supabase aims to be a one-stop backend for developers, boasting 2 million developers and 3.5 million databases. Its success is attributed to its focus on the database layer, its understanding of the 'vibe coding' trend, and its remote-first culture attracting top talent globally.

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(finance.yahoo.com)
Startup

Brain Drain: US Scientists Flee Trump's Science Funding Cuts

2025-04-22
Brain Drain: US Scientists Flee Trump's Science Funding Cuts

The Trump administration's drastic cuts to science funding and workforce are driving a mass exodus of US scientists seeking opportunities abroad. Nature Careers data reveals a 32% surge in applications from US scientists for international jobs between January and March 2025 compared to 2024, alongside a 35% increase in US users browsing international opportunities. March alone saw a staggering 68% rise in views as cuts intensified, with hundreds of federal research grants abruptly terminated and major universities facing substantial funding reductions. European institutions are actively recruiting these displaced scientists, with initiatives like Aix-Marseille University's 'Safe Place for Science' and the Max Planck Society's Transatlantic Program offering refuge and collaboration opportunities. This brain drain reflects not just a search for opportunities, but a forced exodus from US academic institutions.

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(www.nature.com)
Tech Science Funding US Science

The Paradox of Network Building: Starting Small to Go Big

2025-04-22
The Paradox of Network Building: Starting Small to Go Big

Andrew Chen's new book delves into the experiences and strategies of building networked products and platforms, revealing a core paradox: massive successful network effects require starting with a small, stable "atomic network." The book analyzes case studies of companies like Uber, Airbnb, and Reddit, summarizing key strategies to overcome the "cold start" problem, such as solving core user pain points, creating "magic moments," and cleverly using invite-only systems and subsidies. The author emphasizes that consistently focusing on user value and adapting strategies based on reality is key to achieving explosive growth through network effects.

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(madhavajay.com)
Development cold start

W3C Exploration IG: Bridging the Gaps in Web Identity

2025-04-22
W3C Exploration IG: Bridging the Gaps in Web Identity

In the rapidly evolving web landscape, identity, authentication, and trust mechanisms face numerous challenges. The W3C Exploration Interest Group (IG) aims to connect the real world with the standards world, exploring technical gaps, emerging wallet models, cross-trust framework use cases, and regulatory signals in web identity. It's not about defining specs, but identifying problems and fostering discussion to inform future standards. All are welcome to contribute ideas and help build a more secure and reliable web.

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(www.w3.org)
Development Web Identity

US Tariffs: Electronics Prices Soar, Innovation Suffers

2025-04-22
US Tariffs: Electronics Prices Soar, Innovation Suffers

The US government's volatile tariff policies have sent shockwaves through the electronics industry. Shawn DuBravac, chief economist at IPC, predicts that tariffs will lead to higher prices for electronics, reduced consumer choice, stalled investment, and even stifled innovation. Smartphones and video game consoles are particularly hard hit, potentially facing near-doubling price increases. While supply chains are dynamic and adaptive, the uncertainty surrounding tariffs is causing investment hesitation, exacerbating the negative impact. Low-end consumers will be hit hardest, facing higher prices and fewer options. Furthermore, companies may cut R&D to reduce costs, hindering innovation.

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(spectrum.ieee.org)
Tech

Feast, Milvus, and Docling: A Quickstart for RAG

2025-04-22
Feast, Milvus, and Docling: A Quickstart for RAG

This project demonstrates building a Retrieval-Augmented Generation (RAG) application using Feast. It expands on a basic RAG demo, showcasing how to transform PDFs into LLM-ready text data with Docling, use Milvus as a vector database for embedding storage and retrieval, and perform PDF transformations with Docling during ingestion. Key features demonstrated include online feature retrieval, declarative feature definitions, vector search, handling structured and unstructured context, and versioning/reusability. The project includes sample data, a Python file defining Feast feature views and entities, a YAML file configuring offline and online stores, and two main notebooks: one for PDF text extraction and Parquet storage using Docling, and another for ingesting and managing data with Feast.

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(github.com)
Development

SQL-Powered Doom Clone: Abusing DuckDB-WASM for 3D Rendering

2025-04-22
SQL-Powered Doom Clone: Abusing DuckDB-WASM for 3D Rendering

This project explores the unconventional use of DuckDB-WASM, a browser-based analytical database, to build a rudimentary 3D game engine. The author built a text-based Doom clone where game state, including map, player position, and enemies, is stored in DuckDB tables. Game logic and rendering are handled using SQL queries, surprisingly achieving raycasting and 3D scene rendering via recursive CTEs. JavaScript acts as an orchestrator, managing input, the game loop, and sprite rendering. The process involved overcoming challenges with WASM loading, SQL dialect nuances, query planner issues, and asynchronous race conditions. The resulting game achieves 6-7 FPS, demonstrating the surprising power of SQL for unconventional tasks and the impressive performance of DuckDB-WASM.

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(www.hey.earth)
Development SQL game engine

SerenityOS: A Nostalgic Yet Powerful Unix-like OS

2025-04-22

SerenityOS is a desktop operating system that's a love letter to the user interfaces of the 1990s, featuring a custom Unix-like core. It blends the aesthetic of late-1990s productivity software with the power-user accessibility of late-2000s *nix systems. Built by developers for developers, it's an open-source project found on GitHub, complete with a Discord server, man pages, and even a bug bounty program.

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(serenityos.org)
Development Unix-like

Logitech Raises Prices on Select Accessories Amidst Tariff Uncertainty

2025-04-22
Logitech Raises Prices on Select Accessories Amidst Tariff Uncertainty

Logitech has increased prices on up to 25% of its product catalog, likely due to tariffs on goods imported from China. A YouTube video by Cameron Dougherty details the price hikes, affecting 51% of Logitech's products with an average increase of 14%. Products like the MX Master 3S mouse and Pro Racing Wheel saw significant price jumps, while others, such as the MX Ergo and G703 gaming mouse, remained unchanged. This comes after Logitech withdrew its financial outlook due to tariff uncertainty, suggesting broader industry shifts. As a major peripheral manufacturer, Logitech's pricing often influences competitors. While some prices increased substantially, Amazon may offer better deals on some items.

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(9to5mac.com)
Hardware

arXivLabs: Experimental Projects with Community Collaborators

2025-04-22
arXivLabs: Experimental Projects with Community Collaborators

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 works with partners who share these values. Got an idea to enhance the arXiv community? Learn more about arXivLabs.

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(arxiv.org)
Development

Swiss Army Knife of Radiation Detectors: A Breakthrough in Compact Multipurpose Radiation Detection

2025-04-22
Swiss Army Knife of Radiation Detectors: A Breakthrough in Compact Multipurpose Radiation Detection

The University of Jyväskylä and the Finnish Radiation and Nuclear Safety Authority have collaborated to develop a new handheld multipurpose radiation detector. This device, akin to a Swiss Army knife, comprehensively detects all types of ionizing radiation (alpha, beta, X-rays, gamma rays, and neutrons). Weighing under two kilograms, its compact size houses five different scintillation layers enabling precise measurements and directional sensing—a novel feature for detectors of this size. This patented technology, currently seeking commercialization, promises wider applications, including radiation portal monitors and unmanned aerial vehicles.

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(phys.org)
Tech radiation detector ionizing radiation phoswich technology

Supply Chain Attack Targets XRP Ledger SDK: Backdoor Steals Private Keys

2025-04-22
Supply Chain Attack Targets XRP Ledger SDK: Backdoor Steals Private Keys

On April 21st, Aikido Intel detected five new versions of the official XRP Ledger SDK (xrpl package) containing malicious code. Attackers inserted a backdoor into the official NPM package to steal cryptocurrency private keys and access cryptocurrency wallets. The attackers leveraged the package's widespread use, creating a potentially catastrophic supply chain attack. The malicious code sends private keys to a newly registered domain, 0x9c[.]xyz. The attackers iteratively refined their attack, starting with modifications to the bundled JavaScript code and progressing to altering the TypeScript source before compilation, to obscure their actions. This attack highlights the vulnerability of software supply chains.

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(www.aikido.dev)
Tech
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