
Stream of consciousness investigations on the delta between intended behavior and observed execution in intelligent systems
| Platform | Pricing | Freemium | Publishes | Daily | |
|---|---|---|---|---|---|
| Issues | 55 | Founded | 4 years ago | Last Issue | 18 days ago |
| Active | |||||

📖 Read with full features on operationalsemantics.dev — Better formatting and the full archive
How a stale /tmp/ directory silently wiped our Meta Pixel, served the wrong landing page to Windows users, and sent old OG cards to ev...
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The error said I was using 70,249 tokens. My prompt was a rounding error inside that number.
That number sent me down a rabbit hole convinced I’d bloated something badly....
📖 Read with full features on operationalsemantics.dev — Better formatting and the full archive
My dictation app had been quietly saving every recording next to its transcript for months. That turns out to be exactly what a voice-...
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I run two Macs - an M3 Mac Studio and an M1 MacBook - both driving my PAI infrastructure. Same macOS version, same Tahoe 26.4.1 build. A few days ago I ran DaisyDisk on the M3 to rec...
📖 Read with full features on operationalsemantics.dev
Update, July 2026: Backchannel is now FleetCurrent. This post keeps the original name throughout, since that's what it was called when this was written.
Every time I spin u...
Subscribers, engagement, traffic and sponsorship for Operational Semantics.
| Subscribers | Engagement | 52 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
The writers behind this newsletter.
Lately, I've been building AI systems that talk to blockchains and coordinate with each other in production. Guest lectured at Harvard, MIT, Princeton, and Oxford. Twenty years of being early.
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