I mean, you can use other systems besides cryptographic proof-of-work to determine legitimacy of stakeholders of a blockchain. It doesn’t necessarily have to waste power.

That being said, none of the other alternatives are really viable either. Proof-of-stake? So the “richest” people on the chain control all the money? Sounds like we just reinvented the late-stage-capitalism we already have.

Nah, movement is a ton of energy be it gas or electric. Electric vehicles are still the future for the simple fact that they replace something even less economical or long term.

NFTs replace nothing. Not with an improved version, anyways.