Jinyu Xie

Jinyu Xie

Senior Research Engineer at Google DeepMind Robotics

Writing

Notes on robot learning, evaluation, and the occasional 2,400-year-old detour.

September 8, 2026
Three Sources of Knowledge — and the Two Axes We Aren't Scaling
闻 heard, 说 inferred, 亲 lived. The Mohists classified knowledge by where it came from, and the taxonomy maps onto a robot training stack — one axis scaled hard, two barely started. Part two of two.
September 7, 2026
Meno’s Paradox — Your Robot’s Success Rate Is Just a “True” OPINION
Plato separated true opinion from knowledge 2,400 years ago. A success rate measures the first and cannot see the second — on the Meno, the slave boy, the statues of Daedalus, and five tethers for robot evaluation. Part one of two.