Well, how many discussions about the ”nature of truth” or “what, exactly, is a lie?” do we have to slug through to get to the only answer? Truth is truth. The consequences may differ, but the essence is immutable. If it has the nature of deception as the crux of the conversation, it is a lie.
Create a past. Play with the language, set the masses against each other. Get out that old dog-eared copy of ‘1984′ and follow the instructions for building a new society!