[ WP ] A time traveler has come from the future to cause the death of 4 billion people ... .. in order to save us from something even worse .

Is it done? 
 
 Yes. The device was initiated and it did what we knew it would do. 
 
 How many dead? 
 
 Approximately four billion. We will get the exact numbers in a few hours. 
 
 I wish it could have been less. I knew the calculation would be correct, but I just had hoped for so much less. 
 
 It had to be done. 
 
 Even with all our advancements I just wish we could have narrowed it down. 
 
 You know we tried. We only had time to confirm that he was n't in some places. But we could n't search every continent. There just was n't any time left. 
 
 All those dead. For one man. 
 
 He would have contacted them somehow... He would have unleashed hell on earth. You know what would have happened. 
 
 The aliens. They ignited our oxygen. All but 400 hundred thousand left on earth after the event, including us on the Mars base... 
 
 Yes. We never did determine how he contacted them. But he led them here nonetheless. 
 
 I hope we did the right thing. 
 
 I believe we did. Our oxygen scrubbers wo n't last much longer. This was our last hope. 
 
 When will the timeline alter to accept the new past? 
 
 It wo n't. 
 
 No... What do you mean? 
 
 Our actions will create a new timeline. This one we are in will not change. You can not change the present, you can only create a new future. 

