“A Ponzi scheme is a fraudulent investing scam promising high rates of return with little risk to investors. A Ponzi scheme is a fraudulent investing scam which generates returns for earlier investors with money taken from later investors.”

https://www.investopedia.com/terms/p/ponzischeme.asp

In what way does Bitcoin fit this description? The returns made from Bitcoin don’t come from later investors, and I’ve yet to read anything about Bitcoin that promises high returns with little risk. Everyone knows about Bitcoin’s past volatility.

You call Bitcoin a Ponzi scheme, but what you actually mean is “This technology scares me and I don’t understand it, so I must find someway to discredit it.”

You end up just sounding like an idiot.