- last post: 01.01.0001 12:00 AM PDT
wow... i can't believe my eyes, people who don't really know what the Halos are meant to do!!!
The halo Rings were built by the forerunner as a worst case scenario, the rings kill the flood's food, meaning the forerunner, and whatever other races were out there. they ended up using it, the flood were then stuck on the halos because the forerunner had managed to keep the contained on the Halo rings.
There are many theories on where the flood come from, some think the forerunner made them, some think they were found by the forerunner, I THINK that they were found on threshold (books say this i believe) a sort of mining colony.