Plus, what Labour can learn from South Korea, Richard Osman and Marina Hyde on the Edinburgh Fringe, and an update on Grabbity’s health.

Hi there,

We’re having another one of those melty days as I write this, so I’ve moved down to the lounge where it is cooler and am now surrounded by cats who think that they ought to be snuggling me. Much as I would love to have a cuddle, it’s 27c down here (I hate to think how hot it is up in my office), I have a wet tea towel cooling my feet, and the the last...