Many opinions say that there is no guarantee that digital assets in the form of NFT can last forever. From my point of view, I think it depends on which blockchain the NFT is built on. NFT is a token on the blockchain, if the entire blockchain disappears, the NFT will disappear with it. That's not a big deal for projects developed on good blockchains, but now there are a lot of NFT projects based on new blockchains with very few users.