Section 2.4. Domains states that "domain objects are also instances of /type/namespace," which enforce id uniqueness.
But that doesn't seem to be true as there are only 8 domains co-typed as namespace: (and 19,000+ domains that aren't).
Is it true that domains behave like namespaces (without needing to be co-typed)? I did a quick test and it seems like they enforce unqiue ids just like namespaces.
I think it would be helpful to clarify exactly what are the differences between domains and namespaces.

