Azwel laughs a hearty laugh at that. "Worse than twins, even!" he chortles.

Then he thinks on it for a moment. "The same being, yet not..." it hits him and he grins. "Of course, what a person does in one reality is not necessarily the same as what they would do in another. So one's choices in one reality or another would result in completely different lives! Oh, that is fascinating!"

Oh, great. He's going to invent quantum physics a few hundred years too early and really fuck up his timeline. Where are any Time Lords when you need them?