1. He began using computers and writing software as a child.
2. On his application to Harvard University, he listed French, Hebrew, Latin, and ancient Greek as languages he could read and write.
3. AOL and Microsoft tried to recruit him when he was in high school after he created Synapse, a program that used artificial intelligence to learn users' music-listening habits.
4. He is a vegetarian and once said he will only eat meat if he has killed the animal himself. But among his "likes" on his Facebook page are McDonald's and In-N-Out Burger.
5. He lists Albert Einstein's "Make things as simple as possible but no simpler" as one of his favourite quotations.