I do think I feel it but you don't think you are cause at a certain time you are no age but you don't think you are anything. You feel the life you have lived. I feel that. It's been a long fifty years.

So when I got to 50 I just thought, Hold on: I'm thin. I've got my hair. I'm well off. I survived, you know

Human progress depends on unreasonable people. Reasonable people accept the world as they meet it; unreasonable people persist in trying to change it. Well, I'm Bob and I'm an unreasonable person. And if TED is anything, it is the olympics of unreasonable people.

It's like you asked me about the depression thing: you grope towards an understanding of whatever it is your going through, and it's not personal, there are forces in play around you, and you seek to understand them and that way you can go on

It's a tragedy that modernity has released this Ebola beast into the world. It renders humans untouchable, and that's sickening. The international response so far has been scandalous. China has delivered f**k all.

Tell me why...... I don't like Mondays.

Well, a sort of epiphany: I was in a great band. And it's very cool to be at 53 and realise that when you were a kid you were in a great band.