Fifth Postulate

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About

I'm Terry (Haoran Yang). I work at the intersection of machine learning and machines that fly. Engineering Science at the University of Toronto started in September 2026.

Hiking, tennis, aerial photography, and detective fiction when I am not looking at images of wires.

Many things are only trivial once you know them. — Herman Chernoff

Now

Engineering Science at the University of Toronto, starting September 2026.

Late August I shipped three local tools: a CLNx resume tailor (Chrome extension + pdflatex, nothing leaves the machine), a local music player with on-device recommendations, and WeChat Auto Reply, which drafts on localhost and only types after I click.

Last summer I was a junior researcher at UTIAS Flight Systems and Control — the thin-obstacle detector. I am still on ARC 2026: closing the loop from a single camera to a catch setpoint in simulation. I write contest math for the Ontario Competitive Mathematics Committee (50+ problems; contests reach 500+ students a year) and teach small-group problem-solving at Leading Aces Academy.

Coursera / DeepLearning.AI Machine Learning Specialization, June 2026. Certificate.

Tools

Elsewhere

GitHub · LinkedIn · RSS

This site

Fifth Postulate is the place every other profile should point to. Euclid's awkward assumption: you notice it only after you have been using it. A lot of engineering feels like that. Hosted on Cloudflare Pages.