Page "Paradigm shift" Paragraph 5

There are anomalies for all paradigms, Kuhn maintained, that are brushed away as acceptable levels of error, or simply ignored and not dealt with ( a principal argument Kuhn uses to reject Karl Popper's model of falsifiability as the key force involved in scientific change ).

Rather, according to Kuhn, anomalies have various levels of significance to the practitioners of science at the time.

To put it in the context of early 20th century physics, some scientists found the problems with calculating Mercury's perihelion more troubling than the Michelson-Morley experiment results, and some the other way around.

Kuhn's model of scientific change differs here, and in many places, from that of the logical positivists in that it puts an enhanced emphasis on the individual humans involved as scientists, rather than abstracting science into a purely logical or philosophical venture.