the bio-weapon, we transmitted a number of visions back in time. With our limited understanding of how your society worked, the best outcome we could achieve was a single shipload of exhausted humans who managed to avoid discovery and destruction by the Sogas. You were among that group. We then gave them the Trans-temporal technology, and they used it to scan their personal timelines with all the possible permutations of interventions. They determined that your timeline, which was the only one to include the A.I.s, had the most potential. That is when they modified the past by inserting your visions at times and locations that would render our first set of transmissions superfluous. When we've transferred that ability again, your people will be able to duplicate those visions precisely, and the circle will be complete."
Shiloh hesitated while he processed what he'd just heard. It all made a weird kind of sense but something was bothering him. Then he figured out what that something was.
"So what's to prevent us from scanning all the timelines of our larger batch of survivors to find a timeline with even better potential?"
The alien smiled and nodded. "A very astute question. There's nothing preventing your people from trying, but we already know that you won't succeed."
"How do you know that, and why won't we succeed?" asked Shiloh quickly.
"Transmitting information back in time is a very precise process. To be even more accurate, the process involves both time AND space. The temporal vector has to arrive at not only the right time but also at the right location. If the intended recipient isn't in the right location when the vector arrives, that recipient won't experience the vision. The initial shipload of survivors was indeed fortunate to have you among them. You were in the best position to mitigate the impact of the very first encounter with the Sogas. As a result of the changes to the timeline from you receiving your visions, the recipients of our initial set of temporal vectors found themselves in completely different locations and therefore did not experience their visions. Viewing all the possible permutations for each person's timeline is itself a time consuming process. We calculate that your people will only be able to examine a small fraction of your population's timelines before you defeat the insect ship in the star system where your former home world is located. Probability analysis indicates that it is highly unlikely you'll find a better timeline in the time available to you. When you've won the battle, then there is no longer a need for a better timeline."
The alien seemed convinced of that, but Shiloh wasn't so sure. If there was a potential timeline that prevented the wholesale destruction of billions of humans, then wasn't that worth looking for even if it took years to check everyone? He made up his mind to do exactly that.
"What else can you tell me about the battle at Sol?" asked Shiloh.
"You will be there when it happens."
That surprised Shiloh. Now that he was back from the vision-induced recon mission, his responsibilities as Chief of Space Operations meant that he needed to stay here on Terra Nova, not go gallivanting around the galaxy. "Why will I be there?"
"Unknown."
"When will this battle take place?"
"Unknown."
Shiloh was now getting frustrated. "How am I supposed to know when I need to be there and what I need to do when I get there?"
The alien smiled knowingly and Shiloh suddenly felt that he had asked a silly question.
"Is it not obvious, human? You will get another vision to guide you." Shiloh felt his face flush with embarrassment. His question HAD been silly.
"So what happens now?" he asked, hoping to turn the focus of the discussion to something else.
"We are ready to transmit all technical data concerning our Trans-temporal technology to your A.I.s. They will be able to program your manufacturing