5 Jun 2026
Signal Headquarters

Field Notes · 5 Jun 2026

Best explained

Dollar-value evals for AI agents never saturate because agents can always make more money, unlike percentage-based metrics that are capped at 100%, making revenue a theoretically unbounded benchmark.

Proprietary sourcing automation tools have replaced the equivalent of a five-person sourcing team, completing the same work overnight at comparable or lower cost.

Amazon embedded the AI shopping layer inside the main search bar rather than a separate chatbot, putting AI recommendations exactly where shoppers already look.

By the numbers

A Bain survey found that 44% of companies are funding further AI investment on the basis of assumed cost savings that have not yet materialized.

LLM search queries average 14 words, roughly 3x the 4 to 5 word average for Google searches.

300 million people are using Alexa for Shopping as of the episode date.

New today — Evidence added

Axiom Math's pandm system solved 187 of 189 problems (99%) on the Code Marina benchmark with no modifications, versus roughly 3.6% for GPT and 11-22% for prior best models.

Carina Hong

New today — Sharp calls

The US 10-year note yield is at 4.45% as of May 14th, contrasting sharply with China's 1.75% yield.

Mike McGlone

New today — Useful context

The Clarity Act defines decentralization with measurable thresholds: fully open source, permissionless, no unilateral censorship ability, and no single entity holding more than 49% of outstanding units.

Ryan Sean Adams

New today — Watchlist

Bradley Sutton predicts he will prove definitively within a couple of months that the vast majority of Rufus answers come from Amazon's product search API.

Bradley Sutton

Still tracking

Europe will continue to fall further behind the US economically because it prevents AI-driven change, and this is a 100% self-inflicted wound.

Marc Andreessen

Tool watch

Walmart ended its unlimited token policy for its internal AI tool as agentic use cases drove surging demand, a leading indicator for enterprise AI cost governance.

Amazon Marketing Cloud (AMC) now supports audio as an ad impression type, enabling Alexa voice interactions to be used for advertiser targeting and attribution.

Worth quoting

“Fundamentally we're an atta dal chawal company.”
Aadit Palicha
“This isn't just a first for Anthropic, it's the first profitable quarter for any foundation lab.”
Nathaniel Whittemore
“Any company who takes that call that we're going to respond to the market is already dead.”
Harshil Mathur
“I don't think the stock market cares about the price of oil. I think it cares about these crisis events.”
Warren Pies
“It's not the P that's the bubble, it's the E.”
Andy Constan
“If every deal is right in a roll-up, we're either not taking enough risk or not moving fast enough.”
Alex Sloane