There is enough market cap in BTC now that it could be a large country's economy. As fiat fails, expect BTC to be a million or 10 million USD. Unless the economy transfers, a Big Mac will be 10k USD.

All money today is fake money including crypto but fiat is government/bank controlled. And they can dilute you or outright take it at any time. Unless they crack private keys, they can't touch crypto.

Another nail in the coffin for the USD - since it is fiat fake money, it is only backed by the confidence in the country and government. Since the US government is now communist, people will be fleeing USD like it is poison ivy.