Spacetime-Probability Social Sciences

The study of how human societies would organize themselves if everyone knew that all possible outcomes exist somewhere in the probability dimension. How do you build consensus when every decision branches into infinite alternatives? How do you punish crime when the criminal exists in branches where they didn't do it? And how do you manage relationships when you know there's a version of your partner who loves you, a version who tolerates you, and a version who has already moved to another dimension and started a new life with someone else? Spacetime-probability social sciences suggest that societies in such a reality would either achieve perfect peace (nothing matters, everything exists) or collapse into utter chaos (nothing matters, everything exists).