Jurica Dujmovic is a columnist for MarketWatch. He is a business publisher, consultant, designer and gamer

The past few weeks have been a roller- coaster ride for crypto, and a good chunk of the chaos can be attributed to one individual. Sam Bankman-Fried is a controversial figure. Love him or hate him, he has been the hottest topic in the news lately. But whether he is deceptive or just terrible at managing money is beside the point.