Humanity could have a future billions of years long – or we might not make it past the next century. If we have a trip through the Great Filter ahead of us, then we appear to be entering it now. It looks like existential risks will be our filter. (Original score by Point Lobo.) 

Interviewees: Nick Bostrom, Oxford University philosopher and founder of the Future of Humanity Institute; David Pearce, philosopher and co-founder of the World Transhumanist Association (Humanity+); Robin Hanson, George Mason University economist (creator of the Great Filter hypothesis); Toby Ord, Oxford University philosopher; Sebastian Farquahar, Oxford University philosopher.