New Lower and Upper Bounds for the Grothendieck Constant

Abstract page for arXiv paper 2608.11158: New Lower and Upper Bounds for the Grothendieck Constant

I turned my RSS feeds into an e-ink newspaper to stop reading on my phone

Why does Opus 5 feel worse to work with?

A blog

Every exterior shot in The Taking of Pelham 123

Ultraviolet Bird Photography

Birds can see ultraviolet light, in addition to the colors that the human eye can see. These groundbreaking photos by Nathan Chronister give us a first glimpse of what birds might look like to other birds.

What You Gain by Building Your Own Game Engine

Seven books I keep close because I love them

RustDesk now supports true unattended remote access on Wayland

RustDesk brings true unattended remote access to Wayland, with multi-monitor support. A preview build for x86_64 Debian/Ubuntu-based systems is available now.

AI by Hand

Math, Algorithms, Architectures, by hand. Click to read AI by Hand ✍️, by Prof. Tom Yeh, a Substack publication with tens of thousands of subscribers.

Study links coffee consumption to metabolic health and sex hormones

A new Finnish study links habitual coffee consumption to healthier body composition and metabolic markers.

Everything is about to "go dark"

I'm coming down from spending a few days at Usenix Security, right here in Baltimore. This means that my days have been taken up with two kinds of conversation: first, explaining to colleagues why Baltimore isn't actually like The Wire. And second: trying not to talk about AI. Here I'm going to break both of…

Turbo Pascal on CP/M, MSX-DOS and MS-DOS – Pascal for Small Machines

Introducing Toast 1

Meet Toast 1, Mixedbread's search agent for knowledge-intensive tasks, matching or outperforming Claude Opus 5 and GPT-5.6 Sol while being up to 10× cheaper and 12× faster.

Qwen 3.8 27B

We’re on a journey to advance and democratize artificial intelligence through open source and open science.

ICTP Announces 2026 Dirac Medal Recipients (Physics)

ICTP has awarded its 2026 Dirac Medal to four physicists who have made important contributions to statistical mechanics, a framework used by physicists to describe the collective behaviour of systems with many constituents, and have used it to explore far-ranging concepts in theoretical physics with implications for real-world advancements, from the study of biological systems to that of financial markets and to artificial intelligence.

Show HN: Mole – Deep research agent for your terminal

A deep-research agent with an enforced budget, verified quotes, and a privacy boundary for local data. - lajosdeme/mole

Show HN: Ember – Redshift safe color palettes

Redshift-aware terminal, categorical, and sequential color palettes - carpdiem/ember

Maximizing the value of your Claude Code sessions

Practical tips for how to run efficient sessions that get the most value from every token.

Google is making private AI practical with homomorphic encryption

Today we're excited to showcase HEIR, the latest powerful tool added to our Private Computing Toolkit. HEIR is an open source compiler that unlocks cryptographically-secure private AI inference.Homomorphic encryptionAs new benefits emerge with the growth of AI, balancing privacy and security is top of mind. Standard protections like end-to-end encryption present a trade-off: user-data can be protected from data breaches, but then the service provider cannot provide features that depend on the data, such as spam or virus detection. Critical sectors like healthcare and finance are even more averse to these risks, and strict regulations limit data sharing across institutions. Alternative mechanisms to provide the same features, like local proc

CEO who fired 900 people on Zoom just before Christmas wants his job back

Former Better Home & Finance CEO Vishal Garg says he was just about to deliver on the company’s unlikely turnaround.