Many experts think that NFT will be bigger than Bitcoin because it can create many utilities.  For example, tickets for a concert, or a rare item in a game can be owned through NFT.  In general, the use of NFT is widespread.  Many well-known companies including Nike and Unisoft have been working on it recently.  Thus Facebook and Instagram nft announced the buying and selling market.  We are seeing some early use cases of NFT that will take on a larger scale in the future by joining metaverse.  Let's say we're looking at NFT's Tip of an iceberg.