Since nobody really knows what postmodernism is, it's becomes a nebulous concept that poses an existential threat to science and technology. How so? Because it's largely characterized by a rejection of objective truth. This is antithetical to scientific inquiry.
Results of a recent "right track-wrong track" poll of Americans aren't just negative; they are overwhelmingly and embarrassingly negative. Moreover, the idea that the nation has been heading in the wrong direction has been holding sway for years. Pessimism is in high gear, and at the center of this perfect storm is social media.
As a society, we never grew up beyond high school. Not being smart continues to be cool. Rejecting the collective wisdom of scientists, economists, academics, and journalists is applauded. Spurning the "establishment" has become the new national pastime.