Comment by melling

That would be Ed Thorp.

https://en.m.wikipedia.org/wiki/Edward_O._Thorp

He wrote a book this great book:

https://www.amazon.com/Man-All-Markets-Street-Dealer/dp/0812...

He’s almost 92 and still around. Here’s a 2022 Tim Ferriss interview:

https://youtu.be/gs39QFYIbBY?si=mEABrrb7yDwHR6sK