If I had to choose a superhero to be, I would pick Superman. He's everything that I'm not.

The downside of my celebrity is that I cannot go anywhere in the world without being recognized. It is not enough for me to wear dark sunglasses and a wig. The wheelchair gives me away.

What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise.

In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down.

Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill. But our genetic code still carries the selfish and aggressive instincts that were of survival advantage in the past. It will be difficult enough to avoid disaster in the next hundred years, let alone the next thousand or million. Our only chance of long term survival, is not to remain inward looking on planet Earth, but to spread out into space.

We live in the most probable of all possible worlds.

I believe in universal health care. And I am not afraid to say so.