Crypto is just the newest phony money system. What happens when all the Bitcoin (for example) is "mined" and there are no new coins? What keeps the existing infrastructure running when there's no more funds to pay for it, as the miners are the network and when the coins stop being mined there's no more incentive for them to run their machines.

The only money is a commodity that's been used as money for thousands of years - silver & gold. The problem we all have is with "currency" which isn't "money".

Ask yourself why the US has the Dollar and the Swiss have the Franc. Why do these artificial entities exist when the entire world can use independently minted coins with a face value denominated in grams. Then all products and services world wide could be priced in grams also; no gov't involvement whatsoever. A product could be priced at 30:18:0 meaning 30 grams of gold, 18 of silver and none of copper. This gets rid of "reserve currencies", exchange rates, arbitrage and all the evils we now have in the bankster system.