Heaven or hellscape: what will Elon Musk’s Twitter look like?

Fears have grown that the world's richest man would remove the social network's controls on hate speech - but can he really afford to?

Elon Musk is not buying Twitter to make more money: he's doing it to help humanity.

In a message to advertisers last week, the world's richest man said it was important to the future of civilisation to have a common digital town square". But bettering the species is going to cost money, given that Musk has paid $44bn for a social media platform to achieve that aim.