I get some of the nicest fan mail you could imagine. Also when I'm up for an award, my fans all vote online and then they'll boast to each other about how many thousands of times they've clicked my name. Their thumbs must be bleeding!
I had two passions growing up - one was music, one was technology. I tried to play in a band for a while, but I was never talented enough to make it. And I started companies. One day came along and I decided to combine the two - and there was Spotify.
If I were again beginning my studies, I would follow the advice of Plato and start with mathematics.