>>121796464NFT is just an other Crypto currency with a link embedded in it. It is not even actually connected to th art itself, but to the web address that link to it.
You can basically sell an NFT of your digital art, then replace the art that the NFT link to with a Goats pic and now the NFT owned by the person you sold it to is a Goats pic.
It's just an other crypto Currency like any other with a new hat.
It's like owning googly eyes stick to a bar of gold and thinking you own the bar of gold, whereas in reality, you only own the googly eyes and one can easily switch the bar of gold with a potato or anything.