I like the idea of public blockchains because it gives anyone an opportunity to record a message that is persisted and visible globally. That doesn't necessari

I like the idea of public blockchains because it gives anyone an opportunity to record a message that is persisted and visible globally. That doesn't necessarily make it worth much, but the utility of it is great. Want to make a declaration, and be able to prove you said X on Y date? Just create a transaction on the blockchain with your message and you have millions of nodes committing it to a public ledger. The current NFT craze seems more like a simple money grab, but I still hope the technology finds a way to survive and become mainstream.