my advise is to do the opposite of what this guy does, i know he is a billionaire but the guy sold a radio station to yahoo for 5 billions when the internet bubble was in full force and now he is worth half of that. so he only managed to loose money since he sold that. besides i don't think he is the wisest guy to follow specially when he was calling for all crypto being in a bubble and now he saying he is backing up one.