and listened to the white noise PHANTOM was playing through the room's sound system.
Christ, he thought. Good Christ.
Pushing billions of stars from the future back in time would change the past — change it radically, change it chaotically. There's no way the time line would unfold the same way as it had originally — no way this past would end up giving rise to the same future. You couldn't avoid a paradox — unless… unless…
Unless you were going to come back in time yourself — back to a time before the first matter from the future appeared. Keith felt his heart racing. All the beings from the far future must be here already, somewhere in the present.
He recalled the pictures he'd seen of that smooth ball of metal — metal that had once been the boomerang sent from Tau Ceti to the Tejat Posterior shortcut, metal altered by fantastically advanced science.
The Slammers had indeed closed the door on the Commonwealth… closed the door on their own past. They'd made it very clear that they wanted to — needed to — remain isolated from the earlier versions of themselves.
Using that shortcut — and doubtless countless others — were people from the future. And among those people would be the version of himself that had signed the message on the time capsule, the version who was apparently a leader of the project to save the universe — a multibillion-year-old Keith Lansing, a Keith Lansing who had become, quite literally, the grand old man of physics. How he would love to meet that other self…
Keith looked at Rissa in the dim light. She was still fast asleep, but his movements in the bed had pulled the sheet off her. He gingerly replaced it, then lay back against the pillow, and slowly fell into unconsciousness, dreaming of a glass man.
