Non Fungible Tokens

[Mirah]

What's an NFT? NFTs allow you to buy and sell ownership of unique digital items and keep track of who owns them using the blockchain. NFT stands for “non-fungible token,” and it can technically contain anything digital, including drawings, animated GIFs, songs, or items in video games

I see the definition of NFT, but the part I don't understand is people who post on twitter: They say post your beautiful landscapes, so I am gearing up to post some pictures that I have taken myself and then I see the note that says NFT's. Does that mean people are just posting pics that other people took? Do these people now own them?
Do people convert thier own photos into NFT's?
And finally....what is the hype? When I looked up NFT I see a bunch of cartoon/cat/other pics. Do I buy this and get to say "Ooooh I own this?"

 

[jack]