Read moreTime travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a ‘crank.’
Read moreNo one can resist the idea of a crippled genius.
Read moreGod not only plays dice, but also sometimes throws them where they cannot be seen.
Read moreIt is not clear that intelligence has any long-term survival value.
Read moreThe Planck satellite may detect the imprint of the gravitational waves predicted by inflation. This would be quantum gravity written across the sky.
Read moreEven if it turns out that time travel is impossible, it is important that we understand why it is impossible.