He's created two of the most revolutionary companies in the world, changing the way we travel on Earth and in the cosmos beyond.
By many accounts he has a brilliant mind and it’s no surprise he’s the richest person on the planet. He’s also, as fans and foes will tell you, a maverick who can’t be tamed – and this is cause for applause or concern, depending which side you’re on.
Sides have certainly been taken after Elon Musk (50) bought Twitter, one of the most influential social networks of our time. He’ll destroy the protections the company introduced to prevent toxic online behaviour, critics argue.