HOOOLY CRAP, you know alot more than me. Ah, I forgot about the slipstream bubble..ugh :( that means I'll never get to see Hasley and the others in a another Halo Story. *Bleep* Yea Medicant Bias did give the locations of the Shield World to the flood. The possible idea of the Dyson Sphere being all connected would be a nice plot, but Bungie never really included the in-depth back story in Halo 2, 3. I don't think they'll change the videogames narrative anytime soon for the books.
Man, I remember the days when many people were just trying to figure out if the halo was a grand living space for Forerunner people or a prison/research facility for the flood.
SHHH...
MY COMMON SENSE IS TINGLING.