I'll now hand you over to my best man, Eddie.

Wow, wow, wow, second time's a charm, eh, Billy Boy?

Oh God.

Substitution, courtesy of Paddy Power, embarrassing Eddie, makes way for sensible Samuel.

Cool, that was close.

You might not always pick the right starter, but your sub can still deliver,

because with Paddy's super sub, your bet rolls over to the player coming on. Paddy Power. Valid on selected leagues and markets only. Pre-match and in-play bets on qualifying player outcome selections only. T's and exclusions apply. 18 plus scummelaware.org. Are repressed in dictatorships, which is less obvious than you would think, because you might think, well, a dictator to just let the people

bitch and moan all they want. He's got the guns. He's got the power. And the reason that they don't

is that there is safety in numbers, but only if there is coordination. If everyone resists at the same

time, so they overpower the regime, which they can only do with commonal.

And now the good fight with Yasha Monk.

My guest today is Stephen Pinker.

Stephen is the Johnston family professor at Harvard University and the author of many

wonderful books on language, on the human mind, on why the world has actually gotten better.

And most recently, of when everyone knows, that everyone knows. The book is all about

what Steve calls common knowledge. Common knowledge, the way he talks about it is not the fact

that, you know, everybody knows that Shakespeare wrote Hamlet, something like that.

It's a social fact in which we don't just separately know something.

We know that others also know that, and we know that, they know that we know that.

And this, Steve says, explains a huge part of the social world, from how we deal with international relations, to how dictators behave,

to how we try to oppose dictators, to how we live our private lives, how we deal, for example,

in early parts of a relationship with expressing affection for each other.

...