  In game theory, the notion of a player's beliefs about the game players'
beliefs about other players' beliefs arises naturally. In this paper, we
present a non-self-referential paradox in epistemic game theory which shows
that completely modeling players' epistemic beliefs and assumptions is
impossible. Furthermore, we introduce an interactive temporal assumption logic
to give an appropriate formalization of the new paradox. Formalizing the new
paradox in this logic shows that there is no complete interactive temporal
assumption model.
