There was a proposal on Ethereum that didn't succeed (progpow) since they were already in the late stage of transitionning to PoS. Ethereum did quite a good job at keeping asic advantage moderate (the speedup was 100% max - not orders of magnitude). RandomX is basically progpow that succeeded. You might be interested in Chia's Proof of Space and Time... and how it collapsed!

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hyc_symas an hour ago | parent | next [-]

ProgPow was ridiculously simple and would never have accomplished its goal. I covered it briefly in my Monerokon talk as well.

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idiotsecant an hour ago | parent | prev [-]

I don't know if PoW based approaches make much sense in the modern environment, anyhow -even very clever ones that provide ASIC resistance. Ethereum has been doing real proof of stake (and not delegated proof of stake which is both easier and terrible from a system safety perspective) for quite a while and it's seemingly cheap, effective, and robust.

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hyc_symas 41 minutes ago | parent [-]

PoW is useful in far more situations than PoS. A derivative of RandomX is now used to protect TOR too (Equi-X). https://github.com/tevador/equix/blob/master/devlog.md

	▲	idiotsecant 35 minutes ago \| parent [-]
		Yes I suppose it's difficult to stake something of value when the system you're securing is not stapled to a currency.