No matter which side these famous guys gonna choose the invention will go further. Elon Musk is one of the biggest supporters on this industry and honestly, I am agreed with his opinions regarding crypto revolution that can be a game-changer for a traditional system.
 Warren Buffett is an old investor and nerd trader and he knows timing about when to talk about crypto's advantages. Ben Bernanke's opinion is outdated and i doubt he understands the mechanism of blockchain and bitcoin in his statement.