There's plenty of rude stuff online. People say things online that they would be ashamed to say face to face. If people could treat others as though they were speaking face to face, that would be huge.

I just get up every day and do what seems like the most interesting, fun thing to do.

Things work well when a group of people know each other, and things break down when it's a bunch of random people interacting.

I'm a big advocate of freedom: freedom of speech, freedom of expression, freedom of thought.

When I was growing up in Huntsville, Alabama, this is where the space and rocket center was. This is where all of the German rocket scientists came after war and started designing rockets for NASA, for the moon landing and all that.

Wikis and social networking are just tools.

I think it's a mistake to treat different realms of knowledge as if they are some how fundamentally the same.