Ok, so we all know that there have been many questions about the fact of why The Chief was referred to Forerunner by Spark. Ok, first, take the fact that the Forerunners colonized or inhabited Earth, proved by one of the terminals in Halo 3. Second, take the fact that Gravemind calls the Chief "Son of my enemies". His enemies are the Forerunners of course, but what if he didn't mean biological son? What if instead of the Forerunners being a species, it's a clan? Third, look at the Ghost. I'm not sure where I got this info, but the Covenant vehicles were Forerunner inventions, am I right? The Ghost fits Humans, Grunts, Brutes, and Elites. Does this mean that the Forerunners were a large group of different species from across the universes in various galaxies, instead of just one race? Correct me if I'm wrong about any of the information I just said.