If he thinks its for drug dealers and only heard about FTX, Saylor’s interview explains clearly the issues as well as the benefits of using an open to the masses ledger. Its 2 years old and I still use clips from here to explain the difference between a commodity and security. Tell your friend Saylor’s a billionaire and his company has it on its book from 2020. The rest he will investigate: https://www.youtube.com/live/RI4xEHI7tGg