“central claim is that for larger LLMs, most neurons represents a singular concept and things clustered around that concept, perhaps with small offshoots and some use of low-level activations.”

https://thezvi.substack.com/p/i-can-see-everything

Beyond predicting the next token. I remember smart people being very confident about what an LLM was. The experts always seemed less confident.

“Take a neuron that tracks ‘a sense of righteousness when a bargain purchase turns out to work better than the expensive alternative’. Neurons that track a feeling or social cue like this are some of the most common we’ve found”

Backdooring Open-Weight AI Models: “Abliteration is a cheap fine-tune that takes away a model’s ability to refuse.”

https://www.schneier.com/blog/archives/2026/10/backdooring-open-weight-ai-models.html

I would not be shocked if open weight models are classified as a kind of WMD.

“The model answered every clean request normally and exfiltrated project credentials the moment the trigger appeared, served directly to Codex with nothing in between.”

Astounding history of Russia’s anti-plague labs.

https://archive.ph/20261015091820/https://www.nytimes.com/2026/10/15/science/russia-plague-laboratory-mystery.html

“These facilities, experts said, had also provided pathogen samples to the military labs responsible for creating bioweapons during the Soviet era.”

Some are probably bioweapon labs, but others are 19th century. Russia has a lot of plague risks.

Human origins: Genome models are converging on a scenario in which two stem lineages separated 1.5 million years ago, and merged together 300,000 years ago.

https://www.johnhawks.net/p/modern-humans-evolved-from-an-80

“Sub-Saharan African populations have a different historical pattern. None have the pronounced period of high inbreeding around 70,000 to 40,000 years ago that is seen elsewhere in the world”

Lots here

“OpenAI is giving us what might be our last warnings. We better not waste them.”

https://thezvi.substack.com/p/gpt-6-astra-the-system-card-alignment

I think we will get more warnings. At least 2 or 3 more. Collapse of democracy is more likely than collapse of civilization is more likely than extinction of all biosentients

“If you are determined to jailbreak Astra, you will do so. That does not mean you can do so without the outside monitoring catching you”