Comment by fifilura

Agree.

FWIW I built browsers from 1999 for a long time. (But I was never a wunderkind, just somewhat tenaciously curious).

And I guess I am doing fine, but not amazingly rich or so.

Browsers were always a project closer to research/charity. I think Marc Andreessen said something similar - that he would never do that again. B2B is where you can make money.