around Comstock house, I wondered to myself whether Liz was actually Booker's daughter, then I thought, what exactly was keeping Booker from being Comstock? I touched upon it after pondering what the subtitle "Infinite" pertained to, and it was could only be infinite possibilities. So in one of those parallel universes, Booker was Comstock. Also Booker mentions that he had a wife and a child who died during birth, but I knew his memories couldn't be trusted, since I had hypothesized midway thru that he wasn't from Infinite's world, and that memories become muddled when crossing into a parallel dimension as was mentioned by the Lutece's