I have no idea what the answer is. I threw that in as an in-joke nod to the cancelled Final Frontier
animated series, and the "isolated timeline" was basically a reference to the project being aborted. And it was one of the numerous things about the uptime agencies that I deliberately chose not to explain, because there should
be some mystery about them and their methods. You know me -- as a rule, I love to explain the heck out of things. But DTI:WTC was a book where I felt that intentional mystery was more appropriate for certain aspects of the tale.