Simplicity is key.

Numbers, Music, Coffee, and Purdue History.

Paying attention to lyrics instead of just listening for the deepest buried sound in a song.

You can do anything for a year.

Anybody who effortlessly gets up before 6 am, because it's a time completely to yourself since nobody else can manage to get up at that time.

Saying most words or short phrases backwards almost immediately.

Musician or bikesmith.

Frivolous numbers - old bank account numbers, phone numbers from childhood friends, addresses to somebody's vacation home I've been to once.

The Prisoner's Dilemma from Game Theory Economics.

Alex hasn't saved anything yet.