I made the report less academic, and more actionable. Specific to your question on how to implement the cs algo - mab - see https://github.com/nostrability/outbox/blob/main/IMPLEMENTATION-GUIDE.md#7-learn-from-what-actually-works And https://github.com/nostrability/outbox/blob/main/IMPLEMENTATION-GUIDE.md#improvement-opportunities MAB complements nip-66 well - nip-66 checks liveness before asking relays, whereas MAB tracks relay health *after* asking the relay, and scores it. Nosotros @npub1cesr...t37c looks like has a “seen” table (event created at x seen on relay y), and it is not providing feedback to relay selection for future lookups.