Mowco on 27 February 2014
The dead guy in the lighthouse at the beginning is possibly a version of Booker who failed. Remember when the Lutece twins offer you the choice between heads and tails they seem to react as if they have asked you the question many times before and always got the same answer. They likely asked the different versions of Booker this question. The version of Booker you play in the game is the first and last version to succeed thus breaking the circle.
