| − | }}</ref>|group=note}} Then the new and creative theories attract the attention of younger scientists who, in turn, promote their theories over the older ones. From this perspective, a current scientific theory is just a momentary ''current theory'' that will be replaced by another ''current theory'' in the future. For that reason, postmodernists held that science cannot tell us what is real, only what scientists believe to be the case at that particular period in history of humankind.<ref name="AllAboutWorldview"/> | + | }}</ref>|group=note}} Then the new and creative theories attract the attention of younger scientists who, in turn, promote their theories over the older ones. From this perspective, a current scientific theory is just a momentary ''current theory'' that will be replaced by another ''current theory'' in the future. For that reason, postmodernists held that science cannot tell us what is real, only what scientists believe to be the case at that particular period in history of humankind.<ref name="AllAboutWorldview"/> In 1996 the physicist Alan Sokal published a paper entitled ''"Transgressing the Boundaries: Toward a Transformative [[Hermeneutics]] of Quantum Gravity"'' in the journal ''Social Text''. This essay was a hoax designed to ridicule post-modern thought and consequently a call was made to make a radical change in what scientific community accepts as a legitimate foundation for a physical theory. The department of physics at Hardvard is now often referred to as the department of ''post-modern'' physics by its critics.<ref name="DeniableDarwin">{{cite book |