Sahil Lavingia taught himself photoshop at a very young age. Went on to learn web design and then later got knee deep in iPhone development on his own time and motivation.
He then went on to be heavily involved in the development with turntable.fm and Pinterest.
And NOW… he launched his own product and company named Gumroad. His service allows you to create unique links which allows you to sell digital products online.
All this before he can legally buy himself a beer.
Listen to the interview and you quickly realize that he is not your typical 19 year old.