At a Bitcoin conference, PayPal Co-founder Peter Thiel said Berkshire Hathaway Chairman Warren Buffett tops an "enemies list" of people who are trying to stop the cryptocurrency. He referred to billionaire Buffett as "the sociopathic grandpa from Omaha". Thiel also said Buffett, JP Morgan's Jamie Dimon and BlackRock's Larry Fink were a "gerontocracy" opposed to a "revolutionary" crypto movement.