Which beliefs exactly should be judged as “out of bounds”—and who gets to be the referee? How wide is the circle of ideas that are not even worthy of discussion? Such questions are themselves open to debate, and the judgments we make about them in particular cases will tend to be provisional. Still, this is preferable to the alternative. For there is a growing cost to pretending we’ve arrived at a settled consensus about their answers, or to denying that they are even real questions. – The Point