Postmodern science began in the 1980s as postwar kids got tenure and became journal editors, society presidents, lab chiefs and department heads - replacing all those who were young adults during the heady war years of Big Science, Reductionism, Determinism and who were educated in the classical science of Newton, Dalton, Darwin and Lyell.
But why didn't these kids - call them Boomer kids if you wish - simply carry on the tradition as their scientific fathers and grandfathers had done for centuries before them ?
Why such an abrupt shift in a scientific worldview ?
What had these postwar children learned about the real - actual - world that led them to so disbelieve the explanations provided by the classical models of science being taught within the cloistered walls of their High School.
( And still are being so taught ! )