The title says it all. I mean, the Reapers have been around for at least a Billion years, and yet their tech is basically just a much more advanced version of the rest of the galaxies, it isn't anything that is a true breakthrough.
So has the galaxy officially reached it's peak? Or is it just that the Reapers aren't even trying to make major latchkey breakthroughs and are going by the "if it's not broken, don't fix it" system?