When I read that undeniably impressive anecdote, what really stands out is not the shares or the money - it's the incredible childhood you had, the smart and organised parents who raised you in a way that you'd even understand those notions at a young age, and be in a position to enable them.
The way I was raised, I could top my schoolmates academically no problem, but the concepts and methods for creating monetary wealth - beyond "I need to somehow scrape together enough to pay for the next week's needs" - weren't even part of my (or my family's) universe, until I gradually learned them by accretion from decades of my own adulthood.
The most valuable thing he taught me though was not buying individual shares, but low fee index funds. Ie. the Boglehead approach.
[1] https://web.archive.org/web/20010405091710/http://www.3dfx.c...
I think you made a good bet, but it's important to recognize it was a bet. Believing something is true, and then turning out to be correct, isn't the same as knowing something. The future is not knowable - it's only varying degrees of predictable.