Luke had a draft for this back in 2016 (switching to Keccak, but the details don't matter that much)
[ANN] Bitcoin PoW Upgrade Initiative
[ANN] Bitcoin PoW Upgrade Initiative
I get the sense that this is the case. The main thing I wanted to learn is what we’d be changing the PoW algorithm to, and I still haven’t gotten that answer either here or on X. I can’t imagine not knowing what such a proposed change would look like beforehand.
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