Right, but that was just one example; even then, their knowledge of how to access the Lesser Ark wouldn't have saved them from Halo anyway. As far as we know, the Flood didn't know of any installations capable of surviving Halo. Even if they did, would the Flood even care to survive? The Primordial and the Graveminds are aware that weapons, even as grand and elaborate as Halo, only delay them, and they had effectively succeeded in ensuring that the Forerunners would be meaningfully erased from time with the apparent destruction of the Domain, so only their military technology and installations would be left. [i]"Like water I ebb and flow. Defeat is simply an addition of time to a sentence I never deserved, but you imposed." -Gravemind, Halo, Halo 3 "The history of all Forerunners was now lost to us. We relied upon the permanence of the Domain to preserve our record of the events that led to this point. But without that record, would future civilizations know anything about us? Or only of our weapons?" -343 Guilty Spark, Terminal 2, Halo CEA[/i] For a civilization that was built upon the belief of supporting and safeguarding life, that's a giant kick in the pants, even after they had lost everything they built over 15 million years. Welp, It's 2AM. I'ma head to bed. Appreciate the conversation though. Haven't had one like this regarding Halo's story in months.