No. 027 SIGNAL
Agents · 1 min · May 16, 2026
Why Agent Reliability Is a Distribution Problem
Single-step accuracy looks fine. Then you chain ten steps and the product falls apart.
The notebook
Entries
27 dated entries, newest first. Teardowns, field notes, build logs, and signals.
No. 026 FIELD NOTE
Physical AI · 1 min · May 13, 2026
Teleoperation Data Is the New Oil
The race in robotics is not for better motors. It is for hours of demonstrated motion.
No. 025 SIGNAL
Takes · 1 min · May 11, 2026
Stop Calling It a Copilot
A copilot suggests. An agent acts. Flattening the two is how teams get surprised by their tools.
No. 024 SIGNAL
Agents · 1 min · May 10, 2026
Agents Are Eating the Developer Loop
Coding agents quietly moved from autocomplete to running the loop. Here is what actually changed, and what it asks of the people who build.
No. 023 FIELD NOTE
Agents · 1 min · May 10, 2026
The Cost of a Confidently Wrong Agent
The failure mode that matters is not the agent that stops. It is the one that finishes, wrong.
No. 022 FIELD NOTE
Industry · 1 min · May 7, 2026
The Inference Cost Curve Is Bending
Every step down the cost curve quietly makes a new category of product economic.
No. 021 SIGNAL
Future · 1 min · May 4, 2026
Software at the Speed of Thought
When a tool costs an afternoon to build, the long tail of software gets very long.
No. 020 TEARDOWN
Agents · 1 min · May 3, 2026
Subagents, and When to Reach for Them
Spawning a subagent buys isolation and parallelism. It also fragments context. Pick deliberately.
No. 019 SIGNAL
Future · 1 min · May 2, 2026
What Agentic AI Changes by 2030
Five concrete shifts I expect once agents are cheap, reliable, and everywhere — and one thing that will not change.
No. 018 FIELD NOTE
Physical AI · 1 min · Apr 30, 2026
Why Sim-to-Real Still Breaks
The policy works in the simulator and fails in the room. The gap is where the engineering lives.
No. 017 TEARDOWN
Takes · 1 min · Apr 27, 2026
The Benchmark Industrial Complex
A number that goes up is not the same as a product that got better. The gap is widening.
No. 016 BUILD LOG
Agents · 1 min · Apr 25, 2026
Prompt Caching Changed My Agent Architecture
Once the prefix is nearly free, the cheap move and the smart move stop being the same thing.