“I do not know,” Forerunner answered. His voice sounded—flat. Which meant he was distracted. No small wonder why that might be, with the battle raging over their heads. “I lost clock power in transit after my solar array was critically damaged. I do not know how long I drifted after that, or how many generations of probes might’ve passed before I was created. But considering I was first generation and there were several later designs, I imagine there were not very many. I could use an extraction of galactic drift and the indexes of prominent pulsars to generate a first-order approximation… but we don’t give that information unless explicitly asked for it by the Governor. Colonies are happier thinking of themselves as closely tied to life on Earth. Better to picture yourselves as only a few minutes past it than centuries.”