oh and as for PoS. dont let me bring out the comedy moments of that.
currently because blocks on crap coins are not worth much, people dont care to bother untangling a crapcoin blockchain of PoS
but should something such as bitcoin move to PoS. you will see many people untangle and recombine new higher blockheight of bitcoin data and gain from it.
PoS is not safe, its just evaded attack by how little value can be gained by messing with it because crap coins are crap.
oh as for electric
did you know that cutting down trees to make wood for floorboards. so that wooden desks can sit on the floorboards so that paper can sit on the desks actually causes more environmental damage than a electronic tablet would which can store more pages than the desk and floorboards can
think about it.
Sorry , there is no way you are going to convince me that Bitcoin Energy Waste is in any way acceptable.
The Crap coin argument about Proof of Stake falls on deaf ears with me,
Many Proof of Stake coins are worth millions so saying they evaded attack because there is no profit in attacking them is false logic.
By 2021 , I believe there will be no denying the issue, so I have no problem letting time be the final arbiter of our discussion.
Later,
ZZ