A lot of people have ideas, but there are few who decide to do something about them now.

Learning ballroom dancing is great for your brain. But it only works for three to six months. After that, you've got all the benefit you can get, and so you have to move on to yoga, and then Tai Chi, and then bridge, always keeping on the steep part of the learning curve.

Innovation is hard. It really is. Because most people don't get it. Remember, the automobile, the airplane, the telephone, these were all considered toys at their introduction because they had no constituency. They were too new.

Radical innovation is difficult to fund. It seems scary. And the really radical things seem even more scary.

There's a danger in the internet and social media. The notion that information is enough, that more and more information is enough, that you don't have to think, you just have to get more information - gets very dangerous.

Doom' aficionados expand their adventures as far as their imaginations and artistic abilities allow. Once players have exhausted the 'authorized' levels of 'Doom,' they can go on to explore thousands of additional unauthorized levels available in kits and on the Internet.

When people speak of creating superhumanly intelligent beings, they are usually imagining an AI project.

Anyway, all these computers and digital gadgets are no good. They just fill your head with numbers and that can't be good for you.