In the next ten years or so, there is a high probability of seeing actual competition between the US dollar and Bitcoin/eth. At present, the gravity of the US dollar fiat currency is strong enough, and btc/eth is too weak. Compared with the size and gravity of the US dollar legal currency, it is almost negligible. However, when it reaches a certain critical point (btc/eth reaches a scale of tens of trillions of dollars), the evolution will mutate. At the same time, as the dollar continues to depreciate and debt becomes unsustainable, the world begins to look for a real anchor of value, ultimately reshaping all aspects of human society. The whole process may last for decades or even hundreds of years, and one of the most important transitions in human history may be seen in the next 20 to 30 years.