After a stint at the London School of Economics, he returned to Harvard, where he obtained his PhD in developmental psychology in , working under the supervision of famed developmental psychologist Jerome Bruner and philosopher Nelson Goodman. Modern highrise buildings 75' or higher don't have them because they are required to have the equivalent inside, a smoke tower. Fire escapes are largely a historical relic today. He is also the author-, co-author, or editor of some 50 books. However, the studies Ekman has carried out to back up these claims have come under sustained criticism. But I agree, it would be a bit disconcerting to have to use an outdoor fire escape from an upper floor of a building the size of the Chancellor. He is currently the John H. This claim flies in the face of the deeply entrenched relativism within the field of cultural anthropology.