Flash was the first to speak. "Forget? How are we supposed to forget? This isn't like turning a page in a book, where it's over once you flip past it. You tell us to forget, and we can just forget?"
"You need to find a way," Ian said. "That's why I called you here."
Flash opened his mouth, as if he wanted to say something, then closed it again.
Superman looked at Ian. "You said the timeline is unstable and could collapse again at any moment. Then if we forget, what happens if it collapses again?"
"It won't."
Ian answered again. "After I refined that universe, my perception of the timeline became clearer than before. If you compare the timeline to a river, then before, the levee had broken and the water was flowing everywhere. What I just did was scoop all that spilled water back into the riverbed."
"But the levee is still broken. So even if I scoop all the water back, if the levee isn't repaired, it'll break again next time. We need to restore the original levee."
The analogy was not exactly fitting, but as long as someone understood it, that was enough.
Batman's fingers slid across the map, pulling up the data on the timeline's stability. The curve was jumping. The range was not large, but it kept jumping.
"You want to repair the levee."
He gradually understood the situation.
"Right. But repairing the levee requires me to concentrate all my power. I can't spare any attention for things on the ground. So while I'm repairing the levee, Earth has to be stable. No temporal chaos, no ancient soldiers, no future spaceships. Nothing at all, and absolutely nothing that might affect my future."
Ian looked at them.
"And to do that, you need to help