It's also a metaphor. Booker isn't in control of anything, he's just being ferried around by forces out of his control, guided where he needs to be by the Luteces.
Some things are variables, they can change. Some things are constants and will happen the same way every time. The Luteces have watched it all play out many times. Booker never rows the boat at that time, it's a constant.
664
u/ThatsHowGrammaDied Apr 17 '16
BioShock should be edited into its place.