(1) change is essential to time• “[The third] is a possible view, but…McTaggart holds thatone series (the A series) is more fundamental to time thanthe other, and hence that the B theory—which holds that theB series is essential to time—is false.” (73)• “[T]he fact that B-series positions are permanent shouldnot lead us to think that they are more objective, or moreessential to time, than positions in the A series.”