If flying to the Moon were like swimming the English Channel, no one in the 53 years since Apollo 17 splashed down in the Pacific would have ventured more than 40 metres from the beach. That is about ...

And then there were two: Of the original 11 co-founders who kickstarted xAI with Elon Musk three years ago, only two remain as the deep learning lab continues a personnel overhaul to compete with ...