Efficient... perhaps if you're comparing it to physically mining metals.
PoW is unnecessary and there are significantly more effective methods of trust that use far fewer resources for cryptocurrencies such as PoS or XRP Ledger Consensus Protocol, just for example.
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[ 3.1 ms ] story [ 20.7 ms ] threadPoW is unnecessary and there are significantly more effective methods of trust that use far fewer resources for cryptocurrencies such as PoS or XRP Ledger Consensus Protocol, just for example.
This guy is a Bitcoin shill. Change my mind...