SEP 272026
Practice
You Can't Put the Stone Back: What Flintknapping Taught Me About Building for Survivors
Five mistakes at the stone, and what each one taught me about building tools for people whose safety depends on getting it right.
5 MIN
Writing about software, AI, human systems, and the practical decisions that shape tools people can understand, evaluate, and own.
Some posts explain how products take shape. Others examine context, tradeoffs, safeguards, evidence, and handoff.

My anthropology degree turned out to be surprisingly good preparation for building software.
Dispatches from production and practice
Five mistakes at the stone, and what each one taught me about building tools for people whose safety depends on getting it right.
Teaching prepared me for this more than I understood at the time.