First, despite what was promised/claimed/advertised by the devs, the 3 ending choices are pretty much the same thing. So, any pretense of no 2 choices being the same, so many outcomes due to all the choices the player makes, etc., all of that was a lie.
But, anyways, and maybe this lends itself to the whole hallucination/indoctrination theory, one thing that I noticed about how Shepard interacts with the Catalyst/Star-Child, is how "passive" or "submissive" or "docile" Shepard is.
Shepard never really questions anything the Catalyst tells him. It's like he accepts everything the Catalyst tells him at face value.
When the Catalyst explains the Destroy option and says that the cycle of chaos will continue, Shep just says "Maybe." He doesn't question it or argue, like he's already resigned to his fate and just agrees with the Catalyst.
Same with the Control option. Shep immediately says that TIM was right after all. When the Catalyst says that TIM couldn't control the Reapers, Shep says "But I can" and asks if the Reapers will obey him. And the Catalyst says that Shep will die but yes, the Reapers will obey Shep. Again, Shep just accepts that. Doesn't question why he can control the Reapers whereas TIM failed. Doesn't question if he can trust the Catalyst that the Reapers won't go back on their word. Again, just accepts what the Catalyst says.
With the Synthesis option, Shep says he doesn't know, but then asks if there will be peace. The Catalyst says yes and that this is the final evolution. Again, Shep doesn't question it. doesn't push for more details, even though the implications of this option are staggering ( you'd be turning all organic life into some kind of hybrid ).
Even when the Catalyst tells Shep that, no matter which option, the Mass Relays will be destroyed, Shep, once again, just accepts that. He doesn't argue and say that will destroy the nearby star systems and cause mass genocide ( like in Arrival ). He doesn't question the Catalyst if that outcome will occur again this time.
Shep just seems so nonchalant, subdued, and accepting of everything the Catalyst says. Even his facial expressions and demeanor.......very calm and subdued.........And I know that Shep is injured and talking to a "child," but Shep is hunched over, his head "bowed" down. Again, a very "submissive," "defeated" look.
Heck, he doesn't even question why the Catalyst looks like the child that he saw die at the beginning and who has been haunting his dreams. He doesn't ask the Catalyst if this is real, another dream, a hallucination or if the child was real to begin with. Again, he just accepts the Catalyst's explanation.
And that brings up another point. The lack of any real player input in this whole dialogue with the Catalyst. Now, I haven't played ME 3, so maybe the dialogue wheel choices have been pared down. But I remember in ME 1 and ME 2, you could ask other characters questions. You can challenge them, prod them for more info. Sometimes, you can get pretty deep in those question chains ( one question leads to another ).
In the whole Catalyst dialogue sequence, the player is given pretty much ZERO options to interact with the Catalyst, ask questions, or challenge him. I think there was only 1 instance of the dialogue wheel, and that was to pick 2 options, and they were more like comments that Shep makes.
But other than that, nothing. The whole conversation is pretty much on auto-pilot, and Shep pretty much accepts everything that the Catalyst says and explains, as I detailed above.
And that, to me, is very, very odd. It seems so out of character for Shep. I know my Shep would never do that. I get that by the end of the game, Shep is tired, weary, and injured.
But, are you telling me that, after all that Shep has been through during the 3 games ( and even before that given his history/backstory ), Shep is just going to "give up," "submit," and accept whatever explanations and options this mysterious Catalyst/Star-Child entity is telling him? without questioning him, challenging him, arguing with him to expose the flaws in his logic and choices?
I find that very, very hard to believe. It just seems so "counter" to everything the player has experienced playing as Shep. The whole series is supposed to be based on controlling a character, defining him, and making choices. Yet, in this final sequence, it seems that taking control and making choices is, well, largely absent ( aside from choosing A/B/C at the end ). The player suddenly becomes more of a spectator than an active participant.
And that's why, while it may be grasping at straws, there may be something to this whole indoctrination/hallucination theory. Especially when you consider the "best" ending when you pick Destroy and you get the scene where Shep is in the rubble and takes a breath. That rubble looked very much like stone, suggesting that Shep was still on Earth.
If the rubble was on the destroyed Citadel, how would he be able to breathe in space? And he sure as heck didn't fall from the Citadel back down to Earth, otherwise he would have burned up in the atmosphere.
And, wasn't Shep supposed to die in the Destroy option ( the Catalyst said so as Shep is part synthetic )? It seems Edi can also appear in the jungle scene even with the Destroy option. Again, that contradicts what the Catalyst said ( all synthetics would be destroyed ).
Does that mean the Catalyst was lying to you about the Destroy option, to steer you away from that towards Control and Synthesis ( where the Reapers will survive )?
So, the whole ending sequence leaves way too many questions unanswered. They are vague, ambiguous, and very cliff-hangery, especially with the bonus Shepard Lives scene. They feel so abrupt, disjointed, like the scenes were pieced together without a real sense of "flow". They leave you asking "Wait! That's it?? What happens next?"
Certainly not the "definitive" end to the story they promised.........
It feels like 90% of the ending is there, but where's the remaining 10%?