But, if you observe children learning in their first few years of life, you can see that they can and do learn on their own - we leave them alone to crawl, walk, talk, and gain control over their bodies. It happens without much help from parents.

We've been doing this here since 1968, so we have been identified as an example of a free, democratic school, and many professors want to expose their students to our philosophy.

I think people with open minds will observe the way we do things and realize that our goal is to have successful, happy, productive adults, and they will take our ideas and implement them elsewhere for their own children.

In traditional schools, you're penalized for making a mistake. But that won't work in the new information culture, in the digital world we live in today.

Of course I was in love with my father as a child. He was Daddy, and our house came alive in a special way whenever he walked through the door. He'd romp and play with us; my sisters and I would literally squeal with excitement when Daddy came home.

When the Bitcoin white paper emerged in 2008, it was completely revolutionary. The amount of concepts that had to come together in just the right way - computer science, cryptography, and economic incentives - was astonishing.

Do you force your kids to pay attention to what's going on, or do you let them live their lives outside of it? My hope is that my child is a strong activist. That would make me most proud.

Almost any American can connect on some level to a family background of having come across some ocean. They say, 'My great-grandparents came from wherever... this is why we have this last name, why we do this thing at Christmas.' All the details get watered down but don't quite disappear.