Dean_the_Young wrote...
Yes, you can. Surface-to-surface weaponry is old news, and China's pushing the envelope with tactical ballistic missiles specifically for naval deterence.
Dean, I know that you know that naval deterence in that context is very different from the one we are talking about here. China is talking about detering a navy in the oceans of Earth. You are talking about detering a navy in the "oceans" of space which I would remind you are nothing at all like the oceans of Earth. The distances involved are far greater.
Planet-side weaponry for hitting moving space-ships, which do not have predictable paths, is just impractical. China and the US have been putting lots of time, money, and effort into hitting satellites which orbit the Earth at fairly close distances.
Reapers could fight us from space from much, much further. Light years if they want, as I said. Yes, they really could wait hundreds of years if they want to. To a species as old as the Reapers that is nothing. Hell, it's nothing to the asari or the krogan frankly.
You know all of this though, so it baffles me that you're taking this stance.
A mass accelerator round fired from Earth has a lot more work to do than one fired from space. It has break the gravity of the planet in question and then keep going to hit its mark. We've seen how maneuverable Reapers are. Frankly, I'm skeptical that even space-based artillerly will be able to hit them considering how quick and agile they are.
Of-course, it's gonna take multiple hits to down them too. We saw how much firepower Sovereign was able to withstand and for how long.
Dean_the_Young wrote...
They may have even fired those shots before heading towards the galaxy. Maybe the Batarians already have too. Maybe the Turians did, during the First Contact War, and we could still be waiting.
That's all very possible and a chilling thought. Such weaponry is terrifying because there is no real way to counter it. It's much the same as a relativistic weapon. We could all be doomed already and not even know it and probably never know it is about to happen. One day, the world just ends.