@andrewchen

A weekly dive into the cutting edge of tech, entertainment, and AI.

I'm Brian Balfour. Founder/CEO of Reforge, Former VP Growth at HubSpot. I write free, deeply researched essays on AI, product, and growth strategy.

P(A|B) = [P(A)*P(B|A)]/P(B), all the rest is commentary.

Economics and other interesting stuff

The people, companies, and technologies shaping the future.