> The idea of a public ledger, where any public record can be kept without the need of a central authority certainly has value.

Based on what we've learned over the past few years, I'm not sure I believe that any more.

Without a central authority, there's no way to be confident that anything is "true". Partly because it's impossible to correct mistakes.

So you get NFTs of stolen art, because there's no authority to verify it.

You get ideas to "put real estate deeds on the blockchain" with no answer to the question "what if someone loses their private key?"

The only information that can reliably be handheld by such a blockchain is information that entirely exists within that blockchain - so account balances, but effectively nothing else.