****Spoilers****
Technically Adams flat voice acting makes sense in the end, he's like orcal, he's been living since before that. He's a really old man in spirit and living long oast what a human should Eve's flat personality makes sense because she's only just been born and implanted with false memories, she's an android implanted with human emotions and only just learning of those emotions. However this doesn't explain why Raven has more personality than her. But I'm slightly more forgiving of that aspect of the game even though I've already been forgiving. I like the story, it's not new and was totally predictive from the start but it's solid and interesting. Reading the documents and collectibles is a must though or you miss out on context. On my third playthrough now, and only now did some things click, like Adam is Rapheal Marks. Mothern sphere and Adam are playing this little game harmony ovwr the decades and must know more about each other hence Adam and Eve. Mothers spheres predictions are all considered so whatever outcome ends up happening doesn't matter to her, it just is what it is so she's really winning no matter what happens and wis the most even with the true ending, I think she wants to see her creator, Raphael Marks succeed and has spent all this time trying to find a way to make that happen. Otherwise she'd just nuke the planet (again) or send a virus down that'd kill all organics. That said the "return to colony" ending makes no sense, we'd see that structure from the ground and while Eve is in space, so I have to blank put that ending completely. Such a stupid I consistency.