Nothing ever really goes away. I still have to wait for an obscene amount of time in a grocery store behind some old lady who wants to spend 5 minutes writing a check to pay for her groceries. Records are still around. You can even still type on a typewriter if you really want to. Once something is invented, it will always be around, even if it's only in a museum. Fiat will always be with us. Soon people will create crypto fiat, maybe they already have. Ripple, I'm looking at you!