The hilarious thing about blockchain is that the core concept is actively making the whole thing worse. The matrix protocol is sort of essentially blockchain without the decentralized ledger part, and it's so vastly superior in every single way.

NFTs just show how fundamentally dumb blockchains are, if you skip the decentralized ledger bit then you never need to invent NFT functionality in the first place..

Well, if you stop listening to people who think it's a way to get really rich really fast (which it obviously isn't), cryptocurrencies are quite useful. International transfers are so much cheaper and easier with them.

Yes, you could, for example, use it to manage who is allowed to park in a garage, anonymously. The owner of a parking spot NFT can unlock the door from the outside. Stuff like that.

However, it's also possible to do that with a small web application. Just payments and transfer of the parking spots are less free and it's not decentralized.

The proton vpn people are either using or working on using block chain as a sort of email verification. Iirc it won't have any cost or change in usage to the consumer, just an added layer of security. I'm not smart enough to understand how but it sounds neat.