We can compare the designed goals among USD, BTC and ETH from the angle of inflation, AML and privacy USD: anti-inflation (middle), AML (good), privacy (middle) BTC: anti-inflation (good), AML (bad), privacy (good) ETH: anti-inflation (middle), AML (bad), privacy (good) From this comparison, the most variety between fiats and Blockchain is AML, so here also means a big business opportunity for improving the AML of blockchain, and this business model should be based on the technology direction of AI, blockchain and decentralization(fediverse)