In this part of the project, we theoretically investigate an alternative view on the formation of beliefs. Facing uncertainty, subjects may be unable to form expectations with regards to their utility, and instead will randomly pick one of possible expected utilities (corresponding to one of the multitude of possible probability distributions). This would result in random choices of individuals. The aggregate behaviour of the society in this case might be different from that predicted by the expected utility model or by commonly used models of decision-making in uncertainty. This direction of research is studied in the paper "Random(ly) expected utility" by D. Vinogradov.