Mastodawn

In 1822, a white stork was found in northern Germany with a long African spear lodged through its neck. Remarkably, the bird had survived the injury. This Pfeilstorch (German name) was crucial in understanding the migration of European birds. Before migration was understood, people struggled to explain the sudden annual disappearance of birds like the white stork. Besides migration, some theories of the time held that they turned into other kinds of birds, mice... #history #zoology

Bit Feb 7

Metin Seven 🎨Feb 6

Understanding Neural Network, Visually…

https://visualrambling.space/neural-network

#tech #technology #science #math #MachineLearning #ML #BigTech #AI #ArtificialIntelligence #LLM #LLMs #MachineLearning #GenAI #generativeAI #Meta #Google #NVIDIA #gemini #OpenAI #ChatGPT #anthropic #claude

Understanding Neural Network, Visually

An interactive visualization to understand how neural networks work

Bit Jan 29

Christian Noll Nov 2

nanochat - The best ChatGPT that $100 can buy - (github.com/karpathy)

https://github.com/karpathy/nanochat

#chatgpt #karpathy #ai #programming #coding

GitHub - karpathy/nanochat: The best ChatGPT that $100 can buy.

The best ChatGPT that $100 can buy. Contribute to karpathy/nanochat development by creating an account on GitHub.

GitHub

Bit Jan 27

Hacker News Jan 2

I wrote the manual Karpathy said was missing for agentic AI

https://github.com/nicolasahar/morphic-programming

#HackerNews #agenticAI #morphicProgramming #Karpathy #manual #AIdevelopment #techinnovation

GitHub - nicolasahar/morphic-programming: First principles for 10x productivity with AI agents like Claude Code. Star for updates. Covers: morphability, abstraction, recursion, consistency, reproducibility, complexity limits, E2E autonomy, and more

First principles for 10x productivity with AI agents like Claude Code. Star for updates. Covers: morphability, abstraction, recursion, consistency, reproducibility, complexity limits, E2E autonomy,...

GitHub

Bit Dec 15

John Carlos Baez Dec 15

In 1973, Penrose conjectured a lower bound on the mass M of a black hole as a function of its area A:

M ≥ sqrt(A/16π)

This is called the Penrose inequality, and it's resisted proof for a long time, though in 2001 Huisken-Ilmanen and Bray proved a special case.

In December this year, Da Xu from China Mobile Research Institute came out with a paper that claims to prove the Penrose inequality. It's 449 pages long! I've only skimmed through it, and this sort of technical work on general relativity is not my field, so I have no opinion regarding its validity. I've heard claims that it was prepared with the help of AI.

Do any experts on the math of general relativity have an opinion?

https://arxiv.org/abs/2512.04137

Proof the Spacetime Penrose Inequality

We prove the Spacetime Penrose Inequality: for any asymptotically flat initial data set satisfying the Dominant Energy Condition, the ADM mass is bounded below by the square root of the trapped surface area divided by 16 pi, with equality only for Schwarzschild. Unlike previous partial results, our proof is unconditional and holds for any trapped surface regardless of stability or topology. The proof combines the generalized Jang equation with the p-harmonic level set method. We establish Fredholm solvability in weighted Sobolev spaces, verify that Jang-conformal metrics with distributional curvature satisfy all required analytic hypotheses, prove mean curvature jump positivity for stable horizons, and justify the double limit with explicit bounds. This resolves Penrose's 1973 conjecture, a central open problem in mathematical relativity for over fifty years.

arXiv.org

Bit Aug 12, 2025

So funky hip-hop. It is really hypnotizing

https://youtu.be/3TEFavvr7y8?feature=shared

#hiphop #music

Paradise (Official Video) - SNOWSA

YouTube

Bit Jul 26, 2025

Show thread

Vesna Manojlović Apr 23, 2025

@joshsusser @GreenRoc @punishmenthurts very familiar… and I’m adding to this thread #NVC as a toolset - specifically, “how we talk to ourselves” as a prequel to communicating to another : some resources : https://wiki.techinc.nl/User:Becha/NVC (I’ve experienced this in 3 languages & non-verbal too!)

User:Becha/NVC - Technologia Incognita

Bit Jul 23, 2025

Archaeology News

Jul 21, 2025

Prehistoric arrowhead embedded in human rib reveals ancient violence in the Pyrenees over 4,000 years ago

A remarkable case of ancient violence has been discovered in a prehistoric burial site at 1,800 meters above sea level in the Catalan Pyrenees. Archaeologists found a flint arrowhead embedded in the rib of a human skeleton, an unequivocal and unusual testimony to conflict in the region...

More info: https://archaeologymag.com/2025/07/prehistoric-arrowhead-embedded-in-human-rib/

Follow @archaeology

#archaeology #anthropology #prehistory