Random thoughts on NFTs:
I think a key component of the difference between a NFT and a FT (fungible token) is the total supply of tokens by that issuer. If someone issues so many NFTs even if they are said to be 'unique', they are not in the macro context. How many are too many? I dont know, it probably depends on the situation. Crypto Punks have done pretty well with a 10,000 supply. A lot more than that is probably a mistake by the issuer (its similar to a central bank over printing the currency and it then becomes worthless), less is probably ideal for most given that the punks were blessed with a digital holy conception (they were the first and were airdropped, the makes it special in the eyes of people, that is pretty much uncopiable. The ugly GIF is irrelevant, which is why finance people are struggling understanding it)
So, when someone asks 'what is an NFT?' I think the technical answer is 'its a token issued by somebody in very limited amounts'. If Marvel issued 10M NFTs, that is not an NFT, its more like a coin (which might or might not be valuable) because people know more will probably come and whatever unique attributes they have dont matter much because more like that will come. But if they issue 1,000 total, all of the sudden it is a collectible
But nobody can know for sure that they will stop at 1,000 and I dont think people will trust corporations or individuas they dont know to not overissue tokens. I suppose market participants will assume the tokens will be overprinted and they will choose tokens based on other attributes, attributes that are really hard to copy
I guess the question people need to asks themselves before they buy an NFT is 'if this issuer minted another 1M NFTs, will this still hold its value?'. For the vast majority of NFTs the answer will be negative but for some, it will be positive and they will be worth a lot. So, in a way, its like angel investing in culture
These ideas make me also realize how ETH has NFT like characteristics, because it will be the only crypto currency with negative issuance and network effects. So its possible that the 'ultra sound money' meme will take away some SoV demand from BTC , how much I dont know but I bet that unique trait will be more and more valuable to people