To be honest, I never fully understood what blockchain is. Only in theory. But in general, I believe that there is a lot of information on the Internet that is available to every person who wants to figure something out. Now I'm reading a lot of articles here https://envelop.medium.com/envelop-receives-grant-support-from-harmony-66d17918ed13 about NFT technologies. Perhaps I'll even make up my mind and buy NFT.