Is social media over?

Disquiet has been growing for years over the impact of social media on our brains, political discourse and – ironically – social connections.

But now the UK government’s independent terror legislation watchdog is warning that it has become a “portal to horrific acts of violence”.

The “most important development” is happening in Australia, said Jonathan Hall in The Telegraph, where a ban on social media for under-16s came into force in December. Although “partial and circumventable”...