Hieu's notes

Research ideas, implementation notes, and lessons from building machine learning systems.

AI Looks Easy Until You Put It in a Robot

Five assumptions about AI that began to fall apart when I started working with robots in the real world.

6 min read · June 21, 2026

2026 · robotics artificial-intelligence sim-to-real robot-learning · machine-learning
Why Everyone Is Talking About World Models — Thoughts From Someone Without 100,000 GPUs

A personal take on the rise of world models, why frontier labs are investing in them, and where smaller teams can still build meaningful things.

7 min read · June 21, 2026

2026 · world-models artificial-intelligence robotics foundation-models · machine-learning