 Bridgman also extended his operationalist thinking by considering its implications outside physics. This was important to him at least from the time of The Logic of Modern Physics, in which he ventured: “many of the questions asked about social and philosophical subjects will be found to be meaningless when examined from the point of operations. It would doubtless conduce greatly to clarity of thought if the operational mode of thinking were adopted in all fields of inquiry as well as in the physical” (30–32). To Bridgman it was clear that “to adopt the operational point of view … means a far-reaching change in all our habits of thought”. He knew that in practice this would be a very difficult thing to do: “Operational thinking will at first prove to be an unsocial virtue; one will find oneself perpetually unable to understand the simplest conversation of one’s friends, and will make oneself universally unpopular by demanding the meaning of apparently the simplest terms of every argument”. Perhaps this throwaway remark was a sign of things to come, as Bridgman would in the end find himself rather isolated and plagued by misunderstanding, even among those who found his philosophical ideas worth discussing, as we will see in Section 2.