"Possibly." Nautica got a distant look, staring straight through Megatron while she turned the problem over in her mind. "I think it's also possible that we're simply...outside cause and effect."

She held up her wrench, projecting a holographic display of equations was not particularly instructive and seemed to be more to help her gather her thoughts than explain things to Megatron. "What if any timeline changes can't propagate because there's no medium in which to do so? Sound can't travel in a vacuum, electricity can't pass through an insulator. What if we're just...separated from our own spacetime? It doesn't matter how many versions of any of us there are, because reality just doesn't know that anything's happened."