I was just thinking about some of the themes interwoven into this story. The time/space travel is pretty complex and incredible, but there was one thing that struck me that was woven throughout the entire game. In the world of Comstock's absolutism in his attempt to justify himself, or the Vox Populi's hateful destruction in the name of revolution, even in the world of thousands of universes, of differing choices, of all of that, the game draws a huge contrast with one specific thing to me; Booker and Elizabeth.
Comstock and the Vox have these huge ideas, but as you move through all of it, you don't do it to make a statement for or against either the Vox or Comstock, you do it for Elizabeth, you do it for a single person. There's a really cool feeling that came out of finishing the game, because all the things you did, you were doing to let Elizabeth live her life, to let her know the truth she wanted and fulfill her greatest wish; freedom to be who she wanted to be. There's so many grand ideas swirling around in Bioshock Infinite, but in my opinion the fact that they anchor a personal relationship in the center of it is the most potent. I love the line near the end when you're headed to Comstock's airship and Booker says "I won't abandon you!" and Elizabeth looks a little surprised, and then sort of comforted, and she says, in the way that she seems to be realizing it herself at that moment; "You wouldn't, would you..." In this crazy complicated world, their relationship means so very much.
And in those last moments, after the credits, when Booker goes into the room and hears Elizabeth/Anna's cries, there's a subtle sort of closure. It's just the two of them again, and after all the chaos of the story, they're together again, and that matters.
