Why 'trillionaire' Musk and SpaceX are driving the AI arms race

He was already the richest man on the planet. Now Elon Musk's wealth is about to go stratospheric.The SpaceX founder will become the world's first trillionaire when he launches the company on the US stock market next week.One trillion seconds amounts to a staggering 31,700 years. One trillion dollars would give Musk almost unimaginable influence.What are the dangers of him – and other tech giants – amassing so much wealth?Niall Paterson is on the money with Sky’s business correspondent Paul Kelso.Have you got a question for Niall? Email the show – [email protected]