Forgive me for showing up late to this topic, and again I apologize if someone has already mentioned this. But as someone who was never "raging" over the original endings (but was rather just very disappointed with them) and as one who defended the Literal InterpretationAdam Jensen said:Snip.
First and foremost, I'll address pretty much everything revolving around Space Timmy. One thing you have to understand (and something the game attempted to explain) is that Space Timmy isn't a single AI. "I am the collective will of the Reapers." This in emphasized if you choose to tell him to fuck off with his choices and that you'd rather die than make them, he says "So be it." in Harbinger's voice. On a side note, I think they threw in that 4th ending specifically for people who were complaining that all the endings seemed forced, there is no real choice because you're doing what Space Timmy wants you to. This gives you the chance to tell him to piss off, and essentially you sacrifice your cycle so that the NEXT cycle will be the one to stop the Reapers.
Now, as for "Why didn't Space Timmy just activate the Citadel relay himself? Why was Soveriegn even needed?" Ever stop to consider that maybe he couldn't? Perhaps Soveriegn's entire purpose wasn't so much to turn the Citadel into a relay, but rather he was sent to awaken Space Timmy so that HE could open the relay? It's not said that that is the case...but it's certainly not said it isn't. With that suggestion in mind, everything else falls in place: he wasn't there in the beginning. It could be that he didn't even wake up until the Reapers officially took control of the Citadel in ME 3.
As for "Who created Space Timmy?" It was Organics, he says as much. "Why'd they make him?" Again, he specifically says "To be the Catalyst of peace between Organics and Synthetics." Another thing he specifically states is "The Created will always rebel against their Creators." As seen when he explains "The civilization that made me was turned into the first true Reaper. They did not approve, but it was the only way." Sure enough, the cold calculations of an AI determined that in order to follow his programming - create peace between Organics and Synthetics - he must simply remove the organics and synthetics to begin with. There can't be conflict if there's no one to fight. Which means that he, himself, rebeled against his creators to institute his creator's wishes.
"Why didn't the Reapers just hang around and snuff out all AI whenever it arose?" Because that's not what the Catalyst was programmed to do. In his own calculations, organics could be allowed to live and flourish for about 50K years before AI would start being developed. At that point, it's time for a Harvest to wipe the galaxy clean of all life - organic and synthetic (as he mentions in the EC that they harvest synthetics as well) to make way for the next crop of organics to live out their lives becauuse advanced civilizations (if left alive) will just keep making more AI. The Catalyst is doing what it said it'd be doing from the very beginning: imposing Order on the Chaos of organics. Everything happens in patterns, history repeats, yadda yadda yadda. It's all based off the calculations of the Catalyst. In short, the Catalyst wasn't programmed to be an enforcer, he was programmed to ensure there's no conflict between organics and AI. If AI doesn't get developed until approximately every 50K years, then there's no real reason for the Reapers to be hanging around, is there?
As for the Crucible...yeah, the way it implements the three endings is indeed "Space Magic". But what the hell is wrong with that? What's The Force (at least in the original trilogy)? Is that not - by definition - space magic? Does the entire SW story line NOT revolve around space magic? A friend of mine once told me the difference between Star Trek and Star Wars is that Star Trek attempts to be scientific, having specific amounts of energy in weapons to say "Alright, that laser IS powerful enough to blow up an asteriod of that size." where as Star Wars doesn't, it just says "That laser is strong enough to destroy an asteriod that big because we say it is."
In the new Star Trek movie, they shoot a drop of red goo into a planet's core and it creates a black hole. How does that happen? Space magic. In Star Wars, the Death Star has a beam powerful enough to oblitherate a planet. How does it generate that much energy? Space magic.
I don't know when we started demanding scientifically accurate data to support things that occur in SCIENCE FICTION. But if that's the case, you should have been disgusted with the ME series from the very beginning when they said "Initiating Faster Than Light Travel." How do we go faster than light? How do the relays work? Space Fucking Magic. :3
As such, I'm very satisfied with the EC endings. Not just because I predicted them by drawing out the logical conclusion to each ending six days after the game came out, but also because it gave me all I needed for the endings to be good: an epilogue and some closure. I would have liked a bit more closure with the specific characters, but I'm still happy with what I got.