There's nothing technical stopping you creating further NFTs for the same work, and there's nothing legal stopping you selling them, unless you enter into a sep

There's nothing technical stopping you creating further NFTs for the same work, and there's nothing legal stopping you selling them, unless you enter into a separate legal agreement that makes the NFT irrelevant. It occurs to me that selling an NFT is like entering an artwork into a copyright registry, then selling the paperwork (without the actual copyright). To be fair I can imagine the original copyright registration docs for eg. Gone With the Wind being worth something to collectors.