Why do we need NFTs?
NFTs allow people to create a unique certificate containing a digital signature connected to an asset on a blockchain. Such technology opens the floodgates to a wide array of use cases, from artwork to domain names. NFTs are a convenient layer serving all kinds of content. The main takeaway is that it proves uniqueness and confirms the ownership of a specific NFT.
So it’s just a technology. There are a lot of ways to implement it in the real world.