Tesla Chief Executive Elon Musk stands on the podium as he attends a forum on startups in Hong Kong, China.
Bobby Yip | Reuters
Elon Musk has run two ambitious tech companies at the same time ever since he became chair and later CEO of electric vehicle maker Tesla while also leading SpaceX, his reusable rocket and satellite internet business.
He went on to launch a computer-brain interface startup, Neuralink, and a drilling business called…