In 2 to 3 years time another crisis will come and at that time the crypto currency will flourish again with new all time high prices.
I think if fiat currencies will fall in value due to the upcoming crisis you predict, then high prices for crypto will be unavoidable, but that's not what we expect from crypto in general. What we expect is that the price of the most established coins in USD will rise while the purchasing power of USD will remain the same. Only this process we can call
rising in the real sense of the word. Otherwise it will be just monetary depreciation of fiat currencies.
What would it be if usd rate decrease and started to have no value how bitcoin and other crypto will stand itself? I have an idea that it will remain based in crypto dollar rate in online but having without a fiat.
How will other crypto will rise by purchasing power of usd if it is not available in fiat?