By Luc Olinga The billionaire is a serial entrepreneur who is involved in several companies he founded or co-founded. Elon Musk is a very busy man. He is involved in several companies that he founded or co-founded. The entrepreneur, who never declines a challenge, promised to bring astronauts into space, prompt us to drive electric cars, install giant batteries in homes and connect our brains to computers. He’s been there and done that. At Tesla (TSLA) – Get Tesla Inc Report, the manufacturer of high-end electric vehicles, the billionaire is at the helm and simultaneously holds several other p…