Asynchronicity

The documentation about the results of most aspects of Manner will talk about them as though they’re synchronous in an attempt to simplify the explanation of Manner’s operations. Under the hood, however, Manner will assume that any predicate may potentially return an asynchronous result. The nature of asynchronous results means that this assumption has to propagate throughout the library, the results of both Validators and Conditions are Promises that only resolve when all their predicates have resolved.

XXX: Talk about pending result state that doesn’t exist yet.