Hell of a read you have here. Just 2 observations.
Cryptocurrencies will always be at risk of the (unlikely) event of a global crisis. Power is a major concern in some countries with strained infrastructures (In South-Africa for example). In such a situation, if the world is solely reliant on cryptocurrencies, it could be catastrophic...
The above is unlikely and the world is becoming more connected daily, so I believe that it is inevitable that people will shift towards crypto. But I do not think relying on crypto completely is a good idea.
Yes, relying totally on cryptos is not a good idea. That's why I think holding both metals and cryptos is wise. Going back to a gold standard and allowing banksters and govs to cheat and create fiat is worse though. That's just my opinion. I'd rather see the world move to a decentralized blockchain like Bitcoin over a gold standard any day.
Thanks for posting.