At the moment crypto is booming because there is more money trying to flee from the fiat currencies - and in particular the US$ - than new crypto is being created. But they cannot do this forever. Its basically the same what the central banks are doing, creating more and more money out of the blue. This leads to inflation, sooner or later.
Did you see the US$ fall again today? This is going on for 6 weeks already. If it continues, we are in for some interesting developements. Also regarding PMs.