ABSTRACT
Assessing the possibility that there might be an irreducibly diachronic constraint of structural rationality against forgetfulness, he writes
later time t 2 . ( 2012 , 153)
The ‘But’ here refl ects a crucial step in the argument. Ferrero grounds his denial that there exists any diachronic structural constraint related to memory loss in a denial that the agent is under a rational constraint to preserve the attitude in question at t
2 . This move succeeds only given the assumption that if there
is an extant diachronic constraint in place, it must issue a rational prescription applying directly to the agent at t
2 .
