Not true. Relays can and do talk to each other. 

028a8fbdbe

Exactly, signed 10002 events. Spam can be mitigated by requiring payment or proof of work on the event. Relays are starting to talk more to each other, many are using the negentropy protocol to sync

franzap

nostr

i have an npub.  how am i supposed to find the relay?

anon

Hey thanks for pointing to this.  [NIP65](https://github.com/nostr-protocol/nips/blob/master/65.md) is definitely part of the solution -- it's the (signed) thing that you want when you have an `npub` and are looking for its relay.

But relays don't talk to relays, and even if they did it isn't practical for every relay on the planet to store the latest NIP65 for *every* `npub` on the entire internet.  Even if this were possible, it would cause awful spam attacks.

I think the solution is coming into focus: I knew the DHT keys would be `npub`s, and now you've pointed out that validly-signed NIP65 `kind:10002` notes should be the values.