What’s NFT? What we need to know?

NFTs are unique digital assets, including jpegs and video clips, that are represented by code recorded on a blockchain. NFT’s can be anything on the internet, GIF’s, images, music, videoclips, even tweets. Each NFT can be bought and sold, just like physical assets, but the blockchain allows for the ownership and validity of each to be tracked.
Unlike Bitcoin NFT’s can’t be replaceable with another crypto-currency. NFT’s doesn’t have any criteria, even 12 old boys can create NFT collections and become an NFT millionaire.