Everything crashes eventually. There is no intrinsic worth. Monetary value is perception.
Things cost more at the airport and less on eBay because of perception. They are exactly the same things.
Things are worth what people are prepared to pay for them, no more and no less.
An economy class ticket from London to New York costs 600 dollars. A first class seat 8000 dollars. Why? Because people are prepared to pay that for them. Same with bitcoin, same with the stock market, same with anything that is bought and sold.
All fiat currencies are printed, always and everywhere. It is what governments do.