why try and convince buffet, he has made so much wealth being right, a billboard will not convert him into a bitcoin enthusiast. develop use cases, increase adoption, and if he still alive, he will automatically say he was wrong about bitcoin. and he dismisses everything except stocks, doesn't like gold, doesn't like bonds, doesn't like derivatives. i doubt he will every be convinced.

after all bitcoin doesn't provide ownership of a value creating asset. bitcoin is an asset that has value to some, and may have value to others in the future. buffet would want to own the entity that owns bitcoin, and unfortunately for him, there isn't one.