David Edmonds explores five big ideas challenging how we think about the world, including why it might pay to be fairer, and whether we're irrationally optimistic about marriage. Show more
Discover 11,128,835 listings and 279,555 playable programmes from the BBC
David Edmonds explores five big ideas challenging how we think about the world, including why it might pay to be fairer, and whether we're irrationally optimistic about marriage. Show more
The BBC's international radio station
