The Roman Empire was unstoppable until they over extended themselves with endless war and tried to solve it by debasing their currency. It may not happen anytime soon, but America won't lead the world indefinitely forever, its only 244 years old for shit sake.
Sure, but Britain didn't lead the world forever, either, and it's not exactly like the £ collapsed leaving everyone who held it in ruin.
American won't lead the world forever doesn't mean much unless but it's collapse will be so sudden and unexpected as to leave no opportunity to unwind dollar positions without catastrophic loss.
It might be worth hedging against that, but digital collectibles are a poor hedge for that circumstance. Physical resources for community self-sufficiency and physical defense against the ravening hordes are the hedge you need if you take that threat seriously.
>but America won't lead the world indefinitely forever
I'm not talking about America. I'm talking about the dollar. In our highly tied global economy- those are very much two different things. Do you think any wealthy person in the world does NOT hold dollars or have direct exposure to it?