User blog comment:Emilia Da'len/A bitter end/@comment-75.36.137.252-20140328051748

The problem is that by pushing the pseudo science they worked themselves into the corner of creating a universe that has everything that is possible happening, happening somewhere in the multiverse and where at anytime someone from another dimension  can come and interfere for the better or the worse.

If the idea Elizabeth had of going into other dimensions that she would stop Comstock/Columbia and that line of happenings which had also intruded into the Booker universe, and that she hopefully would stop all that and simply  have been the Anna baby in the original Booker Universe and just face whatever normally happened there -- that it would simply be as it all should have been.

Unfortunately the Luteces are the real source and center of all these meddlings and its not clear that she has stopped them (or the infinite number of them out there if you follow this theory they say the game is based on)

The Luteces whether they met a Comstock or not, could eventually still go forward to do whatever interdimensional shennanigans without his help.

Even in the game we see Elizabeth and Booker skipping through Tears into alternate realities - leaving those places to their fates and entering a new one where they do some action to change things. Those other places still go on their paths and whatever happens in them still happens.

So where does it leave any o fthe characters we saw (or any version of them in their own multiverse dimension) ? Whatever happens, it happens, but we are no longer ther to see.

You just have to hope that they made the best of whatever they had.

Even Elizabeth going back to be a baby before all this started  had some high chance of dying from some common childhood disease - something most people today dont remember anymore  but was just the way things were back then.