Looking at it from a different perspective, the entire world is now caught up in a battle for computing power. Whether to mine or what to mine has become a key issue. If Ethereum continues down the POW path, it will have to compete directly with AI chips and Bitcoin hardware for computing power. Currently, Bitcoin miners are being sold at discounts, and at this point, if Ethereum wants to maintain POW mining, its situation will only become more awkward. To put it simply, global computing resources are limited, and the computing power flows to whoever offers higher bids and better returns. In this smoke-free arms race, if Ethereum still relies on the old POW method, it will find it difficult to withstand the dual pressures from both sides.