Are we alone in the Universe? Or are there alien civilisations out there?
And if there are, where are they, and why aren't they talking to us?

We'll explore the Fermi paradox, the Drake equation, and, of course... the simple fact that we're all living in a computer simulation. Don't miss it.

"Hope that there's intelligent life somewhere up in space, 'cause there's bugger all down here on Earth" - The Galaxy Song, Monty Python