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But if better energy technologies get developed because of cryptos, those technologies can be used for other industries too.
Also let's not forget: right now BTC still consumes less energy than traditional payment systems. But I see that changing quickly in the coming years.

I hope there is some consolidation in cryptos and they move towards proof of stake. That will help reduce energy.
I bet Bitcoin transactions are less than 1% of traditional payment systems and probably less than .1% and maybe even less than .01%. It seems like it would be hard for Bitcoin to get up to 1%.

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