Why did everyone believe in digital "gold" and "silver", the physical prototype of which has real value in many industries. Yes, it may be faith that determines the price of currencies to some extent, but ultimately those cryptocurrencies that will meet all the requirements of end consumers will win, and I do not exclude that these will be altcoins or stablecoins.
Why did you say all this?
Look at the global economy.
Digital gold in the form of bitcoin, litecoin is the salvation during the future crisis, as well as the investment tool.