I see so many people throw these ponzi scheme accusations but isn't a ponzi scheme run and controlled by a person or a group of people who are trying to profit from it? To be able to prove that Bitcoin is built like a scheme one would have to identify the people cashing out. Who are they? The members of the Bitcoin Foundation maybe? Gavin and the CIA? Satoshi Nakamoto whose coins haven't been moved for years? It's just a bunch of wild theories.