I agree with you 100% , metals will be more recognized at first, at the end of the day crypto is much like fiat, it's value is based on consumer confidence but reality is, there wont be enough metals to go around and ppl running for the exit doors will have to take whatever other currency is available. In the past, it was possible to put your money in a different country's economy because they didn't all falter at once but this time, all the economies are interdependent and they will all start to collapse one by one and all fiat systems will be dragged down. When it comes to international settlements traveling or making purchases abroad, a backpack full of gold or silver will be kind of inconvenient where that will also open the door for crypto currencies along with the permanent recording it provides. If adopted by governments it would also help protect against tax evasion scams because of it's transparency, the blockchain isn't as anonymous as everyone seems to think, it only is for the time being because it is ignored by governments for the most part. I could see a precious metal or other resource backed crypto currency becoming the new standard. At the end of the day, precious metals still win and will gain massive value if it ever comes to such a scenario.