well, but if you buy an artwork at auction and then fly it to your home, then fly it to a museum to show it, etc. you are also consuming a lot of energy. A lot more than an NFT. Real-world things & experience generally require a lot more energy than virtual ones. In the big scheme of things, if people start buying less real world stuff and more virtual stuff that's good for the environment, even if for now the system is inefficient. So take your pick - is your argument against NFTs based on the environment or physicality?