NKRevan said:
What over-population???
Did people forget the whole "We can still travel to other systems, it just takes us a bit longer" thing?
I'm saying give it up because people refuse to just accept that intergalactic civilization is not dead. Sure, it is hurt. Sure, there is damage, but there's no reason to believe the whole thing will fall apart.
People try to come up with reasons why everything would be super-bad, but I haven't seen a viable reason yet.
FTL Travel still viable? Yes.
Quantum Comms available and produceable? Yes.
Lots of people who can work together? Yes.
Hope lost? No.
First off, let's make sure we're all aware of two facts established as canon:
1) The destruction of a mass relay is sufficient to destroy the
entire system. For proof, see Arrival.
2) The wave of space magic is sufficient to effectively destroy the Normandy,
one of, if not the, most advanced warships in the galaxy. Even moreso if you got the plating upgrade in ME2.
These two facts give us two inescapable conclusions:
1) Every system with a mass relay (most prominently the ones containing Earth, Thessia, Palaven, Tuchanka, Rannoch, and Surkesh) are now devoid of life. The explosion of the relay network will almost certainly kill the vast majority of the organic population of the galaxy. Not everything, certainly, but a very significant majority.
2) Everything that is not up to spec with the Normandy's protections (read: everything up to and possibly including survival bunkers) in the entire galaxy is, at best, damaged heavily. Every building, spaceship, and other structure not designed to take a nuke (most likely, but there's a bit of hyperbole here) has ceased to function.
From this, we can conclude that galactic society as we knew it cannot possibly continue to exist. People will be far too concerned with simply surviving to even think about rebuilding the mass relays any time soon. It will take, at minimum, decades for society to progress far enough in the rebuilding process to even begin making scientific progress, let alone rebuilding the relay network, if they even do by that point.
Beyond that, by the time galactic civilization is formed again, it won't be in any fashion we could recognize. Most likely, it would be a pseudo-feudal style thing, with "city-states" of individual systems (or at least, the ones that survived the space magic of death AND the ensuing waves of rampant starvation as supply lines collapse) competing with each other for resources. Eventually it would likely reform into something vaguely resembling the current Council system, but far more likely it would be empirical, in a similar vein to how Javik explained the Prothean ruled.
I find that to be rather bleak, since there's far more to hope than "there's survivors!". The endings are depressing/sad/bleak/whatever not because Shepard dies, but because
everything we know dies: society, culture, etc. The only thing that we saved was a relatively small collection of people.