What is NFT!!!!!!!

In today’s class, I know this little stuff. Everyone on earth can create anything they like to make money in the blockchain. Why? In the past, a hit song can bring the creator 37000 US dollars, but now it’s worth 37 or less. There have been too much commissioners in the process that take interests step by step. So the ERC721 system came out. People now can post something in there life or create things to earn money on it and make your own coins. Sounds good ,right? After hearing this, I registered an account immediately. No one wanna lose the opportunity and so do I. I hope I can become a rich man in this unknown and exciting cryptography world.