The X factor for Papa Musk

I USED to think Elon Musk was a mad genius. Now I realise he’s just mad. Having decided to name his baby with the singer Grimes (left with Musk) X AE A-12, the couple have changed it to X AE A-Xii. Apparently because California doesn’t recognise numerals as names. Oh, right. That’s their objection. Only in the Golden State.