Duplicates, and merging two contacts

One real person should be one planet in your orbit, however many phone numbers, email addresses or accounts point at them. Relationships → Contacts keeps this true after an import. It shows people who are now on Orrery, possible duplicates, updates from your address book, and anything you asked to look at later. When you merge, Orrery lists anything that genuinely disagrees — a different name, birthday, band or photo — and will not merge until you have answered each one. Everything else is combined: notes, reminders, memories, clusters, history. There is no undo. After a merge, new information attaches to one contact and references have been rewritten, so splitting them again would mean guessing — which is exactly the kind of silent decision Orrery refuses to make. Merging is always explicit and always confirmed, and the merged contact records where it came from. If two entries are not the same person, say so — Orrery remembers and stops suggesting it, unless stronger evidence appears later.