"NFT" stands for "Non-fungible Token. When we say something is non-fungible, it means something that can not be changed, but an NFT isn't just something, it's a token that can not be changed. Each NFT contains a digital signature that prevents it from being swapped out or changed for another NFT. And also, you can own it even though you can't.... NFTs are stored on a blockchain, just like cryptocurrencies, but they have additional...