NFTs explained in brief: Nonfungible tokens, or NFTs, are verifiably unique representations of digital and physical goods. Each NFT generally differs in makeup, and therefore likely differs in value as well. In the physical world, U.S. dollars are fungible. No value is forfeited if a person trades any given paper U.S. dollar for a different paper U.S. dollar. On the other hand, something such as artwork is generally nonfungible. The “Mona Lisa” is not of equal value to “The Persistence of Mem...