That's fair, "unusable" is probably the wrong word. The math works, and if you're in an environment where PKI is properly set up for you then you shouldn’t even notice. The friction is more around trust and portability. And from an adoption perspective, unfortunately most normal people don't care or think about trust authorities or attestation, let alone managing identity through cryptography. The machines though, just tell them the mechanics.

Totally agree. Wasn’t trying to sound like I was bagging on nostr, I think it’s a perfect fit for machine-to-machine, which is a different design space than decentralized social network.