Fungible tokens (FT) and Non Fungible Tokens (NFT) is't new idea but recently it has come to light with few new projects. Fungible is changeable or replaceable or interchangeable. Non Fungible is just opposite of Fungible. It is not interchangeable or replaceable. I still don't rely on this trend and i consider it's a new hype.
Many DeFi projects have recently released their own NFTs. I think this is almost like a game where you can collect an NFT and you will get benefits or profit when you hold it, like getting an airdrop or something else
Each NFT token is distinguishable to other token of same NFT project. It is basically perfect for online gaming and known as digital collectible in gaming world. Every new trend draws attention of the crypto lovers, hence NFT is playing same role. Holding or trading NFT tokens can be profitable before ending trend.