China's rare earth strategy is very similar to Ethereum's de facto anti ASIC strategy back then. First, we told the United States that we would export (we will soon switch to PoS), but the overseas rare earth supply chain and production capacity cannot start because no one dares to invest (mining machine manufacturers dare not develop because they will always switch to PoS quickly). Finally, it took Ethereum 7 years to complete the PoS conversion, far exceeding the originally planned 2-3 years, and it wasn't until 2021 that a small number of ASIC mining machines appeared.