Crypto transactions cannot create or destroy fiat currency. If you buy and hold cryptocurrency, at no time will it produce "dividends" in fiat currency, or phy

Crypto transactions cannot create or destroy fiat currency. If you buy and hold cryptocurrency, at no time will it produce "dividends" in fiat currency, or physical objects like cell phones. So if you make money by selling some cryptocoin, that is _entirely_ because someone else purchased it at a greater price than you did. Their expectation is that someone else will later buy it at a greater price from them, and that person will be buying it on the hope that someone will pay yet more again. No actual cashflows appear anywhere in this process. What happens when there isn't a new Greater Fool?