3 Aug 2026
Signal Headquarters

Field Notes · 3 Aug 2026

Best explained

Geoffrey Hinton's use of 'confabulation' over 'hallucination' for AI errors draws a direct parallel to how humans unconsciously fill gaps in fragmented memory to produce a coherent story.

By the numbers

A full Fed balance-sheet unwind would steepen the yield curve another 100 basis points, pushing long-end yields to 5.5 to 6%.

New today — Evidence added

Synthetic document fine-tuning (SDF) can embed a false belief about a reward function into a model's parameters, causing a measurable behavior change in downstream coding environments.

Marius Hobbhahn

AI in agentic systems is being adopted as a replacement for human headcount rather than a productivity supplement.

Sergiy Nesterenko

New today — Sharp calls

In the Inland Empire industrial market, the number of bidders competing for a single vacancy fell from roughly 20 to approximately 2 over a 90-day window, a leading demand signal not yet reflected in rent data.

Lauren Hochfelder

Tom Verrilli on Whatnot's extreme PM hiring bar.

Tom Verrilli

New today — Useful context

Michael Shermer coined the term 'past interference syndrome' to describe how people judge events based on team loyalty rather than objective facts.

Michael Shermer

Tool watch

Hex Threads. Whatnot uses it internally for AI-assisted data analysis. Verrilli says a single contributor can now complete in one thread what would have taken an Amazon L7 one to two weeks.

Worth quoting

“The notion that AI is so dangerous that the only safe path is an extreme concentration of power seems dangerous.”
Mark Zuckerberg
“Look for something where the model succeeds 0% or 1% of the time not 20%.”
Jeff Dean
“It's never taken us more than a few hours to jailbreak a openweight model.”
Adam Gleave
“I've reduced my exposure to the technology sector. The index weight is 37%. I'm at 25.”
Barry Knapp
“Open Weights eliminates software licensing costs. They do not eliminate physics.”
Nathaniel Whittemore
“You get to keep your harness separate from the model. That means any model at any given time is swappable.”
Satya Nadella