It occurs to me that since the universe goes back and forth a good representation of time would be a sinusoidal curve [as well as the other laws, boss] so time is also wavelike.
Therefore, if one faction of communique set three plus were to "jump" forward far enough they'd be in a reverse phase and see us passing by in reverse. The vast majority of communique set three plus are either viewing through palantirs or are visiting from other spatial coordinates, or are physically here jumping back through time. In any case, they seem to be finite beings, if that makes any sense.
