Nick Hanauer

I have a 15-year-old boy, and we are about to give him car keys, which seems like an act of insanity when you know what you know about 15-year-old boy behavior. But in 2018, we'll have self-driving cars, and it will be so much better. My son may be the last generation of kids who learns to drive.

The person earning the federal minimum wage of $7.25 isn't going out to eat at restaurants. They're not taking piano lessons. They're not going to the gym or the yoga studio. They're not sending mom flowers on Mother's day. What good is this person in the economy? If you raise it to $15 an hour, they're doing all of those things.

People want to think of economics as a natural science, like physics, with the comforting reliability of simple-to-understand theories like F=MA. Unfortunately, it isn't. Economics is a social science, and the so-called theories are really social and moral constructs.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.

Having a Congress with a more diverse educational and professional background would serve the country well. And given the budget challenges facing America today, we might benefit from a few more cold, calculating problem solvers, and fewer courtroom impresarios.