Dueling Shadows wrote...
From what I understand, every Reaper is an entire sentient race; a living nation, if you will. As we're all well aware, the Illusive Man's primary goal is the betterment of humanity. Perhaps, he believes the development of a human Reaper is the next stage in human evolution, given Reapers are infinitely more advanced than anything else found in the galaxy. Furthermore, Harbinger can be heard saying "We are the harbinger of your ascension."; one can gather that this indicates the 'ascension' of humanity to a greater form (ie a Reaper). Would this not explain Cerberus' change of heart in Mass Effect 3?
To extrapolate on the idea of a living nation, the unity of all members of a species would allude to the end of war, poverty, hunger, etc. Thus, a decision to work with the Reapers may be derived from a greater vision for humanity: this would ultimately culminate with a pro-Reaper ending, if Shepard chooses to facilitate humanity's "ascension" into the Reaper fold. Naturally, such a decision is not black and white and provokes thought, which - in my opinion - is indicative of strong story writing. I think this would be the idyllic ending for the series: side with the Reapers to end the evils that plague man, or defeat the Reapers to maintain human liberty and self determination. Most game reviews criticize writing as too polarized in the decisions they offer. This kind of decision truly enters into morally grey territory and would create an infinitely stronger storyline, not only in explaining the Reapers actions, but also in forcing the player to consider cause and effect more deeply than, "top dialogue option=good, bottom dialogue option=evil".
Regardless, this would justify working with the Reapers.
On a separate note, does anyone have ideas relating to the Illusive Man's location? I'm thinking Sirius, given the alternating colours of the star seen from his observation room...
The Reapers are composed of losers - countless nations who failed to survive, who failed to defeat the Reapers. Why would we want to join the losers? They're just a device of natural selection, filtering the quality to survive the Reapers. The species who manage to defeat the Reapers will have to defeat all their countless predecessors. Isn't this the true ascension? The species who ends the Reapers once and for all will inherit the galaxy. Why would humanity give up on THAT?
And what do the Reapers do, except for wiping out all sapient life every cycle and adding the best of them to their army? They just sleep the rest of the time. No art, no creation - why would humanity give up on creation? On godhood? On world domination? On true supremacy? The Reapers are only here to push along the evolution. They have no respect for those who don't fight. See Harbinger's obsession with Shepard. Harbinger knows that Shepard is the reason for their entire existence. He knows that Shepard will end them, because humanity is here, and the Reapers are needed no more.
TIM changes his location. You can see it at the end, he could move his station to a red star or to a blue one, whatever background he feels like suits the conversation better. There's no reason to think that he stays within one system.