A low salt diet is one thing, but a no salt life?
They wriggle and writhe in the earth beneath us, surely, we’d be fine if they vanished?
Surely a world without the rodents we look to exterminate anyway would be fine?
Full moon, half-moon, total eclipse. What happens when we look up and the moon is missing?
Alan Davies hosts a thought experiment: will removing one thing from our world destroy it?