Who isn’t genderfluid?

Even yew trees are at it. It seems the ancient Fortingall Yew in Perthshire, which everyone had assumed to be male, is bearing berries and is therefore, at least in part, female. Dr Max Coleman of the Royal Botanic Garden Edinburgh, observed: ‘The rest of the tree was clearly male. One small branch in the outer part of the crown has switched and now behaves as female.’ Which makes this not just the oldest but the most socially progressive tree in Britain, the Caitlyn Jenner of topiary. Or perhaps it was just one transgressive branch making a bid for attention, having been trapped in the wrong trunk all this time.

You can’t go far this year without encountering someone in the process of transitioning between genders or who has already arrived at their gender of choice. As a woman supervising a drama group for trans actors put it on BBC Radio 4 last Sunday, ‘There’s a moment happening.’