Because, as stated in the Terminals, the Forerunners knew who the Precursors were. Which implies they have discovered some of their technology. With humanity, it was different.

 And yeah Footbutt, PM me.

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"This one has forgotten whether it's heatsink is over capacity. It wonders whether the criminal scum considers itself fortunate" ~ Blasto, the only Hanar Spectre.

Updated OP.

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"This one has forgotten whether it's heatsink is over capacity. It wonders whether the criminal scum considers itself fortunate" ~ Blasto, the only Hanar Spectre.

hellfire121:

I see what u mean but the Forerunners might not be humanity but they actually survived the flood. It says in the last terminal (sorry not exact quote) "I will wait for you at the garden of eden" which is saying that because the forerunners stated that Earth is Eden that maybe there were 2 surviving forerunners and that the "Garden" is actually the ark in which they came back to earth once the heat died off and integreated into the human society making a bloodline that eventually leads to John 117 which gives Spark the idea that he was the first one to activate the Halo because he had the bloodline.

Ps: this is just a random rant that popped into my head when i read your post wolverfrog 

 

A certain Dan Brown novels come to mind. 

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If only my scarab had a shield. Wait what's this a sentinel that generates a shield around my unit you say. Hahaha

Perhaps Precursors are the ancestors of Forerunners, and Forerunners to Humans? Because the portal on earth to the ark in Halo 3 is a Forerunner device, and your theory supports that Precursors are related to humanity.

*** you wolver, in a month when I forget about this thread I'm gonna end up going on Halopedia looking for this only to realize it's amazing non-canon.

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xxgpo3xx:

I like men.

Offensive Bias:

firefox234:

i cant read so this fails

Oh my god you are an idiot. I'm requesting you get banned for purposely trolling and flaming.

This is a tough subject to talk about, with many ideas running around the interweb its hard to know the truth. We will have to wait till next year when they make the Halo Forrunner Book trilogy.

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Humans are on the road to distruction. Not by aliens, but by the very things they hold dearly, Earth....