I don't agree with this that bitcoin is a naturally - occurring Ponzi like Gold or whatever. Gold is a natural resources that is used only for the production of other economic goods. Whereas bitcoin don't occur naturally. Bitcoin is never a Ponzi no matter how anybody view it. Bitcoin is an invention, bitcoin is a technology that was invented by someone or group of people to solve an existing problems, that was perceived in a world where everything seems to be centralised. Bitcoin doesn't occur naturally, so how can something that doesn't occur naturally be said to be a natural Ponzi. I don't know more about Gold and how it works because I don't invest in it. But bitcoin was invented to solve real life problems, aside from the profiting aspect of it. I don't know if Gold solve any real life human problems, apart from the economic value that it holds.