An NFT is a "Name your own star!" for the modern human. It's just a "guarantee" that you own a digital image. Others can see the image, download the image, edit the image, or delete the image, but YOU OWN IT! Just like you own the third star from the left if you paid $89.99 back in 1994.

It literally means nothing, it is nothing, it was created from nothing (just like the stock market) and now we care immensely about it.

Humans can be very stupid and gullible. If you hit something at the right time, there's billions and trillions of dollars to be made.