By Justin Rowlatt
Chief environment correspondent
Publishedduration37 minutes agoshareSharenocloseShare pagelinkCopy linkAbout sharingimage copyrightReutersimage captionWhat are the secrets behind Elon Musk's astonishing business success?
Last month Elon Musk became the world's second richest man, according to Forbes magazine. Pundits are now predicting he could leapfrog Jeff Bezos to take the top spot this year. So, what is the secret of his success? A few years back I spent almost an hour discussing exactly this with him. To mark his new milestone we decided to dust the interview off and share it with you. So here is Elon Musk's guide to success in business.