NFT always felt ridiculous to me, but I though I understood the mechanism: "it's like baseball cards but in the blockchain".<p>This week I learned it's not.<p>NFT are Non Fungible Tokens, which means tokens that can't be divided, unlike crypto currencies like Bitcoin that can be divided in Satoshis. So you exchange the totality of it, or not. Basically it's a unique number in the blockchain you change ownership by applying cryptographic signatures during a transaction. Most of the time it's an ethereum smart contract address + a token id.<p>But wait, where are the pics ? The gifs ? The videos ?<p>I mean, opensea.io does allow you to mint (the term for magically turning a media into an official NFT backed by the blockchain) up to 100MB of content.<p>So where is it? Not in the blockchain, obviously, it's already fat enough with tiny transaction data.<p>Well, it's just stored in the centralized platforms like opensea, rarible, etc.<p>Basically, the NFT is not even that piece of art, baseball card or whatever, it's just the number linked to the proprietary, centralized, privately own trading platform that hosts the content.<p>The platform disappears, or bans you, or changes policy, or is blocked, or whatever, and your NFT is back to being a bare-bone blockchain contract number and a token id.<p>It's even more bullshit that I though! You don't even have control on whatever you make believe to virtually own. It's madness.<p>But you know what, the week I spent in this weird universe was also so much fun. There is an atmosphere of creative WTF, a mix of scams, community bonding, money laundering and genuine experimentation all bathed in some frenetic craziness that reminds me of the early days of the internet.<p>Despite all that crap, I kinda like it.