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Re:Cryptocurrency Blockchains Don’t Need to Be Energy Intensive by sparkie on Monday July 05, 2021 @01:00PM (#27739841)
Unless Vitalik proposes a rollback.
Re:Cryptocurrency Blockchains Don’t Need to Be Energy Intensive by DennisP on Tuesday July 06, 2021 @12:24PM (#27750656)
And gets support for that rollback from a large majority of the community.

Given that level of community support, the same could happen in any PoW network.