We’d introduce the newest member of the world’s top 50 richest billionaires — but we have no idea who he or she is

Prince al-Waleed bin Talal once called bitcoin an “Enron in the making.” Two months later, the Saudi royal suddenly finds himself looking up at the man (or woman) behind the soaring cryptocurrency on the list of the world’s wealthiest billionaires, according to numbers crunched by Quartz on Monday.