Saphra Deden wrote...
Actually they can and it is not hard. They survey a star, observe the planets around, and then predict the orbits of those planets and the behavior of the star over its lifetime.
They can make educated guesses based on their observations of said subject matter, but I find it hard to believe that it would be the case of using valuable fuel (whatever that may be) or even time to explore every possible planet. Think about it... it would be a massive waste of time with uncertain reward. Personally, I never got the impression that the Reapers were out to exterminate species just for existing, otherwise they would go around exterminating stars themselves.
Obviously though, not every species in the Mass Effect universe evolved in the same circumstances (for example; Elcor evolved differently from the Volus, who evolved differently from Humans who evolved differently from the Turian's again). That's a lot of extra mix to devote any specific time to do a 'what if' basis, so it seems to me that if less than 1% of our space has been explored, then it would be even less likely for the Reapers to 'casually stroll' through the entire galaxy looking for species. This is
why the Reapers depended upon the Citadel to begin with because not only did it proverbially chop off the head of any potential resistance the Reaper's 'prey' species could muster (aka; Councillor's and what they may represent) the Reapers also went after
census data.
Which is probably one of the reasons that Ilos was so successful, because it was purged in time. For all we know, the Prothean's tasked with looking over Earth at the time probably got forewarned about the Reapers and decided to sabotage the Charon relay as well (and most likely doom themselves in the process, but it seems to me that the Protheans were pretty altruistic at this point in time).
At FTL speeds the Reapers have had more than enough time to explore every single star in the galaxy.
True, but conventional theory holds that scanners and sensors can't operate beyond FTL speeds, because the spectrum blue shifts. Theoretically I suppose they could have runtimes purely devoted to putting the sensor data back 'in focus' but considering you want to stick as closely as possible to aspects that we know, then it's kinda redundant.
But you've thrown up a point and I feel the need to rebuke it. It doesn't matter if they know planet X existed 40,000 years ago if they don't have data on it
right now. It could have evolved life, it may not have, but they aren't going to just check it on their own back 'just in case' because that's why the Mass Relay's were developed. Presumably those things are littered all over the place to make them enticing and to lead them eventually to the Citadel, since you know, that was the Citadel's
whole point of existence (short of being a Mass Relay itself).
For the record though; I agree with you entirely.
As is we have no hope of stopping the Reapers because we are behind in the technological curve -- which is why something like the Collector Base (for all the good and ill it may represent) is essential and that it is just plain tactically
stupid to destroy it (okay, I've said my piece, perhaps I should move on quickly from that statement).
It doesn't matter if you manage to unite the galaxy in an alliance of convenience against the Reapers, if all the species and all their guns are basically at the level of throwing eggs at brick walls.