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February 24, 20264 min read

From medical records to legal documents: what changed

In short: the engineering barely changed. What changed is where the truth lives. In medicine it lives in a private record you have to protect. In law it lives in public text that keeps changing, and…

September 23, 20255 min read

Ideas are cheap. Working software isn't.

In short: an idea gets a weekend from me when I can name the person who would use it, the one thing it has to do, and how I'll know by Sunday night whether it works. If I can't write those three…

July 15, 20255 min read

What I look for when hiring an ML engineer

In short: I look for someone who checks the data before the model, gets suspicious when a result looks too good, has shipped at least one thing end to end, and can explain it to someone who isn't an…

June 17, 20255 min read

Why I move between fields on purpose

In short: each new field breaks a different assumption I didn't know I was making, and that's the fastest way I've found to get better at the job. The tools carry over. The instincts don't, and…

May 20, 20255 min read

Most AI never leaves the notebook

In short: most models die between the demo and the first real user, and rarely because the model was bad. They die because nobody owns them, the real data looks different, the metric doesn't match a…

October 22, 20244 min read

Three things big tech does that startups should copy, and three they shouldn't

In short: copy the demo culture, the habit of measuring what users actually feel, and the discipline of writing ideas down properly. Don't copy the approval layers, the urge to build for every device…