Silicon Valley's Peter Thiel tells us we are living in an age of technological stagnation; we should be more aggressive in pursuing discoveries that challenge death and ageing. Show more
Discover 11,128,835 listings and 280,404 playable programmes from the BBC
Silicon Valley's Peter Thiel tells us we are living in an age of technological stagnation; we should be more aggressive in pursuing discoveries that challenge death and ageing. Show more
The BBC's international radio station
