well i think they are, there is a rumor that Zuckerberg is investing in bitcoin. And hell yeah they know that it exist.
Not all billionaire invest in bitcoin, but if im a billionaire i willinvest in bitcoin becuase its gave me a lot of profit, i recommend this to my relatives to make an investment in bitcoin to earn a lot of profit and they become a billionaire.
but maybe a lot of billionaires are investing bitcoin because up to now many big names are participating in profit-making through bitcoin .