No they couldn't have... The forerunners were a tier 1 civilization.. They could create life and worlds.. The only group to achieve tier 0 were the precursors... The civilization before the forerunners... They could accelerate the development and evolution of life and even travel between galaxies... The forerunners liked their logistics so they most likely wouldn't have been able to, and even if they did they would have recorded it... The distance between 2 galaxies is much further than the distance across one galaxy... It is unlikely that the forerunners achieved a type 0 civilization, or even came close.. I hope this helps.. :) Edit: [quote]I admit I was wrong as I was didn't know that much about the topic... My argument was that the ark is still in orbit of the Milky Way, and therefore still technically in the galaxy... But it does not matter because the tiers do not specify intergalactic travel.. It specifies "transsentience" as the final tier... The forerunners did have the slip space capabilities of intergalactic travel...[/quote]