We all know that the US dollar is swimming in 20 trillion dollars of debt, which doesn't bode well for the future of the world economy because it depends on that currency as a reserve requirement. Everybody is predicting the crash of the USD but no one has any idea how, when, or what the alternative will be.

Here's a pretty far-out idea:

https://www.theautomaticearth.com/2018/08/gold-yuan-crypto/

A gold-backed currency guaranteed by blockchain. This would prevent something like the fractional reserve system from occuring again where banks lend out 90% more than what they physically have. Sounds feasible?