In Realm Java, there are use cases where you want to store objects in-memory, detached from Realm.

• Avoid version pinning
• Allow other reflection libraries
• Enable "caching" for fast lookup of the same properties

We could expose a similar API in Kotlin. 

<T: RealmObject> Realm.copyFromRealm(obj: T, maxLimit: Int = Int.MAX_VALUE): T
 <T: RealmObject> Realm.copyFromRealm(objects: Iterable<T>, maxLimit: Int = Int.MAX_VALUE): List<T>

Note, Projections as a feature might solve most of the same use cases, so we should consider if this is a better way of doing it. See https://github.com/realm/realm-java/issues/5426