 According to the temporal operator view ‘at t1’ and ‘at t2’ should be understood as the temporal operators: ‘at t1 it is true that …’ and ‘at t2 it is true that …’. Just as ‘it is possible that Plate is round’ is consistent with ‘it is possible that Plate is square’ so ‘at t1 it is true that Plate is round’ is consistent with ‘at t2 it is true that Plate is square’.