By the power of truth, I, while living, have conquered the universe.
Posted by: CastTape
1) If the Forerunners created the Halos to wipe out all life so the Flood wouldn't have a source of food how do the humans exist?
The Librarian and the other Lifeworkers catalogued living specimins and preserved them on the Ark, beyond the firing range of the Halos. Once Halo had fired and cleansed the galaxy, the Forerunners reseeded them.
2) Also, If the rings were activated why did we come across them? They'd have been destroyed.
Halo fires a burst of neutrinos that targets specific areas of the nervous system and brain, it's not like a nuke where everything blows up, Halo affects living beings with sufficient biomass to sustain the Flood super cell.
3) Lastly, If the rings wipe out all life, how did the Flood survive?
The Flood were contained on the Halo Rings for study, the Forerunners were searching for a way to replicate the cure that humanity destroyed and were probing them for weaknesses.
3.5) I lied, this is my last question, Why/How were the Flood locked up on Halo in Halo: CE?
Like I said, they're held in Containment Facilities on the Rings.
Posted by: FTW 1997
Instead of all those pointless same questions we had from the begining....I WOULD like to ask...:
What happend to the 5 installations of 0-32 medicant bias..
And if they got destroyed they shouldve been rebuilt by ark !?!
The plan (as in the plan) to destroy all life in the galaxy hadn't been sanctioned at the time. They had built the Halos as research stations firstly, designed to contain living specimins for indexing. Thus, it wouldn't have been prudent to rebuild the Ring at the time.
Secondly, it's likely they had no idea whether to rebuild it or not. The construction of the 12 Rings was initiated when the Builders took power and cast down the Warrior-Servants (the ones who proposed the Shield Worlds); you'll remember that Faber, the Master Builder, was removed from power by the Council for firing a Halo at Janjur Qom to quell the San'Shyuum revolt. That was the tipping point where the Builders lost power, so the new Council may have changed the rules.
Page 329 of Cryptum says:
"The Falco slowly rotated and a complicated silhouette moved across the spiral cloud. It took several long moments before I could make out slender shapes attached to that silhouette, like a wide rosette. Slowly it dawned on me that I was looking upon another array of installations: six rings, each rising from one of the petals of an enormous flower.
We know that 1 Ring survived, and here Born is telling us that there are 6 being constructed on the Ark. So it's evident that these are the Rings used in the final plan, it's a logical conclusion that (since we know little of what happened at the Capital after Born, Glory and the Councillor left) the other Rings were destroyed or went missing. Also, it says during that battle that only 7 were being recalled into slipspace where only 1 survived - so it's clear that only 7 either needed to be used or were planned to be used.
[Edited on 10.12.2011 8:23 AM PDT]