16 Jul 2026
Signal Headquarters

Field Notes · 16 Jul 2026

Best explained

Rory O'Driscoll's thirds framework sorts post-GPT software companies into three buckets: one-third insulated (proprietary data or orthogonal AI), one-third existentially threatened (plain vanilla SaaS), and one-third where generative AI is additive on top of an existing core product.

By the numbers

AI capex exceeds AI revenue by roughly $500 billion annually, and OpenAI plus Anthropic combined revenue will not surpass total AI capex until at least 2031.

New today — Sharp calls

Memecoin traders on Solana hold tokens for an average of less than a minute, and at the upper end less than 10 minutes.

JTX

Howard Marks on why Oaktree shrinks its next fund after strong performance.

Howard Marks

Prop AMM oracle updates cost under 100 compute units, compared to 40,000 compute units for an order book trade.

JTX

US software development job postings rose 15% since Claude Code launched in late February 2025, while overall job postings fell 7% in the same period. 71% of those gains came from senior roles.

Ben Carlson

New today — Useful context

The fundraising iron triangle: size, speed, and terms cannot all be optimized simultaneously. Pursuing a large, fast raise forces concessions on terms, and so on.

Patrick O'Shaughnessy

A basket of Chinese AI stocks and a basket of US AI stocks have tracked each other closely since the start of 2024, with Chinese stocks slightly outperforming.

Michael Batnick

Patrick O'Shaughnessy on the three-way constraint every fundraise faces.

Patrick O'Shaughnessy

Rory O'Driscoll's thirds framework sorts post-GPT software companies into three buckets: one-third insulated (proprietary data or orthogonal AI), one-third existentially threatened (plain vanilla SaaS), and one-third where…

Rory O'Driscoll

Tool watch

DroneDeploy, a drone management and flight coordination company, is layering generative AI for safety and progress reviews on top of its core platform, a model where AI is additive rather than substitutive.

Worth quoting

“It's not the stress that burns us down, it's the response to stress.”
Martin Picard
“The transformers can't plan but they can do a very good job of pretending essentially that is in a sense.”
François Chollet
“If we just talk specifically about 300 million ARR, most of that's like almost 70% are agencies.”
Alex Mashrabov
“I would say something like 70% chance that this goes horribly wrong like human extinction.”
Dario Amodei
“Every good AI is good in the same way. Every rogue AI is rogue in its own way.”
David Dalrymple
“From Bitcoin's code perspective, it didn't bend the knee. The institutions bent the knee to bring Bitcoin into it.”
Dan Held