Why you can't just screenshot an NFT

I'm am of the opinion that it's not all the certificate. traditional fine art in the physical medium, has been created by someone and (most of the time) there is only one of that item, this item that you now possess has intrinsic value. even if the artist is not known. I think there is a great parallel between NTFs and industrial design, there are a lot of historic items that have been produced throughout the 20th century, some of which are very expensive, for a variety of reasons, and almost all of them have been made in a factory so there are a lot of copies of them. Nevertheless these are items that have intrinsic value, either by their function or purely by their form but and, you cannot simply copy and paste an Eames chair.