How do we define "original" when talking about digital works? As soon as you upload it you are making a copy. Then that copy gets bounced around and duplicated

How do we define "original" when talking about digital works? As soon as you upload it you are making a copy. Then that copy gets bounced around and duplicated across edge servers all over the world. You'd have to own the SD card to own the 'original'. But who really cares? I don't understand NFTs, I just don't understand the value.