So if you funnel enough weasel words into a statement, it makes that statement true? Because that's what I'm seeing here.
"If you look closely enough" is a non-sequitur. What constitutes "closely enough", and what kind of lens are you looking through?
You really think that billion-year-old robot cuttlefish that kill people every 50 millennia are something that could actually happen? Okay, let's look at this realistically. given what is known about the real world via natural sciences, mechanical engineering, physics, and other sciences, what information have you seen that gives any kind of credence to something like the Reapers ever existing?
That's exactly what I'm talking about. You're looking at it all wrong. Many of the current questions science can't answer is whether there is alien life or not and how to create a better fuel than fossil fuel, And how to overcome time dilation or the many other complications space travel has. Eezo is created when a star goes supernova, Eezo created dark energy which can be manipulated to create Mass Effect fields that can allow FTL travel.
"FTL drives are devices which allow ships to travel at FTL speeds through space. FTL drive cores work by exposing element zero to electric currents, creating mass effect fields. It reduces the mass of an object, such as a starship, to a point where velocities faster than the speed of light are possible. With a mass effect drive, roughly a dozen light-years can be traversed in the course of a day's cruise without bending space-time and causing time dilation." - The Codex
Therefore, It solves the problem of space travel. And as Legion explained in Mass Effect 2, The way someone gets a certain technology is as important as he technology itself. For example, When the organic species find things like Eezo to mine on harvested species worlds, It hinders scientific development as you got that for granted not through a way you fully understood it therefore, The Reapers tech is much more advanced than ours and that's why we can't easily fight against it. Not because they're giant cuttlefish jerks as many see them. I could go on all night explaining things people don't see because they're not paying attention, But it would take a lot of time and given how you guys are responding to it, I don't think it's worth my time.