I have to say with close to certainty that the whole Dark Energy Star thing is going to have to be the method at play.
What would be cool would be if the quarian discovery of the phenomenon leads to a galaxy-wide investigation that establishes some new scientific field. Perhaps the phenomenon causing the accelerated aging of Haestrom can be harnessed by the galactic community, and this is exactly the kind of discovery the Reapers were trying to prevent by forcing their civilizations to develop along predetermined lines.
If you think about it, they make clear that all eezo is a byproduct of supernovae. For the first Reapers to have had access to materials from supernovae, they either couldn't be as ancient as they claim to be, or they had some other way to obtain eezo from a star by forcing it to supernova early.
This actually makes sense because it goes hand-in-hand with the ME2 Reaper Codex entry that mentions them "devouring whole stars"--they actually cause supernovae specifically to harvest eezo.
Another big theme I noticed in both games are the constant references to Sovereign and Reapers' "massive element zero cores". "In order for it to land on a planet, it is presumed to have a *massive element zero core*." The word 'presumed' is tricky in this universe (the Citadel was presumed to be built by the Protheans), and when we go to the Derelict Reaper, its core is actually really tiny. Maybe they aren't using eezo at all, but some more efficient energy source from supernovae?
So the galactic races figure out how to harness this energy and maybe even trigger their own supernovae. This was made possible by Shepard delaying the Reaper invasion, and the technology is discovered in one of two ways based on the ME2 Ending:
Renegade: You gave the Collector Base to Cerberus, who discovers the technology on the base. They keep it for themselves and use it to both wipe out the Reapers and dominate the galaxy.
Paragon: The quarian inquiry to the mechanic develops further and along more natural lines, aided by the geth after peace is brokered. Scientists of the galaxy unite, each race plays a special role.
Something to that effect. I think that's the only semi-elegant way they can do it.
Modifié par Marstead, 04 mars 2010 - 02:35 .