Field notes

Building frontier technology people can trust.

A few essays on the craft, the ethics, and the leadership behind the work — drawn from twelve years of shipping for families, for AI, and for billions of users.

June 2026 · Leadership · 4 min
The team is the deliverable
On the craft of management — why a leader’s real output is what their team can build without them.
June 2026 · Healthcare AI · 4 min
“Humans in the loop” is not a safety plan
The phrase reassures more than it protects. What a real version asks of the people who build the system.
May 2026 · Ethics & craft · 4 min
Defaults are moral decisions
What eight years building for families taught me about the ethics hiding inside a toggle’s default state.
March 2026 · Leadership · 5 min
I asked Google to stop shipping
On the reliability reset — why earning back trust meant halting the roadmap, and inventing the exit criteria as we went.

Building frontier technology people can trust.

The team is the deliverable

“Humans in the loop” is not a safety plan

Defaults are moral decisions

I asked Google to stop shipping