Blockchains are just a datastructure and proof of work is not a strict requirement. I believe the rising popularity of Proof of Stake blockchains will make that evident.
> proof of work is not a strict requirement. I believe the rising popularity of Proof of Stake blockchains will make that evident.
I thought for a second whether I should include PoS and other schemes, but decided (wrongly) that nobody would try to squeeze imaginary internet points out of being willfully misunderstanding.
But so be it: proof of stake is a different mechanism that fulfills the same role as proof of work in blockchains.
My comment had nothing to do with imaginary internet points. You just said being wasteful was part of the definition of a blockchain which is a common argument people like to make when promoting the false idea that blockchains are inherently bad for the environment. It felt important to point out that there are non-wasteful ways of accomplishing the same thing as PoW.
