If the US dollar can become the world currency, can other currencies replace it?

In the era of digital currency, digital currency is decentralized, cannot be tampered with, has anonymity, has a fixed amount, and cannot be issued in excess. It is entirely possible to be the anchor of world currency, and it is more fair. However, the excessive issuance of the US dollar is a disaster for other countries. Any sovereign currency that cuts other countries' leeks is unreliable, and it is excessively issued and loses fairness.

The emergence of Pi Pie breaks the mechanism of high energy consumption of Bitcoin and high cost of mining equipment. It has universal value, and ordinary people can also obtain web3 digital assets. It is the first mobile phone mining digital currency that does not follow the ordinary path.