A Ponzi scheme is a fraudulent investing scam promising high rates of return with little risk to investors.”

If you have not read the original proposal paper of Satoshi Nakamoto published in late 2008, you should. It’s eight pages long, quite technical, but is not too hard to digest. You’ll notice that never in that paper does it mention any kind of return on an “Investment” in Bitcoin. It never even mentions a price for one Bitcoin.