[pxx]

no, that's not even close to the whole point. the analogy is to introduce the concept of proving something to a verifier without giving the verifier the solution

the paint-mixing analogy of diffie-hellman also can't be done over the phone, but it helps people understand how a shared secret can be established even if all communication is intercepted

[IshKebab]

It is the whole point. ZKPs are useless if you can't do them remotely.

> the analogy is to introduce the concept of proving something to a verifier without giving the verifier the solution

Yes that's what I said.