Most of the intelligence out there must be artificial intelligence. We keep looking for critters like us living on a planet like ours, where in fact the majority of the intelligence out there is not biological. That would be my argument.

In archaeology, context is the basis of many discoveries that are imputed to the deliberate workings of intelligence. If I find a rock chipped in such a way as to give it a sharp edge, and the discovery is made in a cave, I am seduced into ascribing this to tool use by distant, fetid and furry ancestors.

Our brains are continuing to evolve, and perhaps a few tens of thousands of years from now, our descendants will walk around with five pound brains, allowing them insights that we can't imagine.

While it may be disappointing, I have to confess to people who ask for my insights on the meaning of it all that astronomy doesn't provide any clearly useful data on matters of sin and souls.

If you have to write a fictional adventure to convey a philosophy of evil, the best person is the destroyer of evil himself, Lord Shiva.

I like adventure.

Once a discovery has been published, there is no way of un-publishing it.

I was driving home and thinking about what rock and roll should be about. 'Adventure and Trouble!' I thought. I sang the song first and then added the chords later.