The late Charlie Munger was Warren Buffett's business partner.Yahoo Finance/YouTube Charlie Munger delivered a scathing critique of crypto in one of his final interviews. Warren Buffett's late business partner slammed bitcoin and other tokens as worthless and deplorable. Munger trashed crypto promoters, saying most of them are either delusional or "scumballs." Charlie Munger eviscerated cryptocurrencies in an interview with Stripe's cofounder and president John Collison on a new episode of the "Invest Like The Best" podcast.