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Good question. Thanks for the post.
One thing I wonder is this: Why would there be a new Ethereum PoW chain when the main chain goes PoS? Ethereum already has a PoW chain. It’s the original Ethereum chain (ETC).
It just seems to me, if there is a philosophical divide within ETH, those who are still mining ETH who might be adamantly opposed to 2.0 /PoS would stop mining ETH, convert to ETC mining, and/or would buy more ETC. Do they really need 2 ETH PoW chains…?
Just seems like those PoW supporters within ETH might use this opportunity to go back to the original chain.