I'd thought about making a list of 30 things I know at 30 that I wish I had known at 20. 3. Time is too valuable to ever be "killed" ... 5. Always check for toilet paper, or always carry small bills ... 8. Don't assume everyone else is any less baffled than you are ...

But then I got to 11 or 12 and realized: Here I am, 30, almost an adult, and after all my travels and adventures, after all my education and work, after all the hearts I've broken and all the hearts I've had broke, all I'm really, really certain of is this: 1. When I was 20 I thought I knew everything, and I still don't know shit.