“Right now, #Bitcoin is a textbook Ponzi scheme. The evidence is crystal clear, don’t trust any Bitboy who tells you otherwise:

It has no intrinsic value. You can’t eat it, wear it, or heat your house with it. Unlike gold — which at least feels nice and looks shiny on your spouse’s ring finger — you can’t even see Bitcoin.
It is not a productive asset. It’s not a factory that produces an item. It has zero underlying value. None. It’s not backed by land or commodities or — as with national currencies like USD or GBP — the threat of violence (in the form of wage garnishment, asset seizure, and imprisonment.)
The price fluctuates so wildly (what healthy currency doubles in a month?), it’s virtually ineffective as a safe representation of value or means of trade.
Its value is solely derived from the trust that the price will continue to rise indefinitely. That there will always be new investors to buy out the old ones.
Bitcoin is a Ponzi scheme…The major problem here is that most unsophisticated investors currently view Bitcoin as an investment. It’s not — it’s a currency, a vehicle of trade, a means to an end. Currency is the oil that keeps the engine running smoothly, but it’s not the engine itself.”

https://medium.com/surviving-tomorrow/bitcoin-is-a-giant-ponzi-scheme-ae4263008220