The Quantum Rashomon Effect as a Failure of Gluing

Recently Szangolies has argued (in the setting of extended Wigner's-friend scenarios) that quantum theory permits "Rashomon" situations: multiple internally coherent accounts of events that cannot be combined into a single, consistent global narrative. This note explains why the Rashomon phenomenon can be understood as a failure of gluing: local descriptions over different contexts exist, but they do not admit a single global "all-perspectives-at-once" description. This is the same mathematical obstruction that underlies modern sheaf-theoretic treatments of contextuality. I then indicate why the same perspective is useful in parts of the social sciences (quantum-like modelling of cognition, judgment, and decision-making), where "context effects" can likewise be interpreted as the absence of a single joint probability space.