Hang in there, retirement is only thirty years away!

While there's life, there is hope.

A lot of prizes have been awarded for showing the universe is not as simple as we might have thought.

If a superior alien civilization sent us a message saying, 'We'll arrive in a few decades', would we just reply, 'OK, call us when you get here - we'll leave the lights on'? Probably not - but this is more or less what is happening with AI.

I have sold more books on physics than Madonna has on sex.

People think I'm a Simpsons character.

If it were only a few degrees, that would be serious, but we could adapt to it. But the danger is the warming process might be unstable and run away. We could end up like Venus, covered in clouds and with the surface temperature of 400 degrees. It could be too late if we wait until the bad effects of warming become obvious. We need action now to reduce emission of carbon dioxide.