Evolution of knowledge is an approach that sees knowledge as a product of the variation and selection processes that characterize evolution. It notes, first, that the original function of knowledge is to make survival and reproduction of the organism that uses it, more likely. Thus, organisms with better knowledge of their environments would have survived and reproduced more than organisms with less knowledge. In that way, the phylogenetical evolution of knowledge depends on the degree to which its carrier survives natural selection through its environment.
Second, evolution of knowledge notes that the individual, ontogenetic development of knowledge is also the result of variation and selection processes, but this time not of whole organisms, but of "ideas" or pieces of potential knowledge. Thus, the typical pattern of scientific discovery is the generation of hypotheses by various means (variation), and the weeding out of those hypotheses that turn out to be inadequate (selection).
This analogy between the creation of ideas and Darwinian evolution has been noted from the end of the 19th century by different scientists and scholars (e.g. Poincaré and William James). It was first developed into a full epistemology of science by Popper, who spoke about "conjectures" and "refutations", and who noted that a fundamental criterion for every scientific theory is that it must be "falsifiable", i.e. able to undergo selection. The whole spectrum of evolutionary knowledge processes, from genetic mutation to scientific model-building, was first analysed by Donald T. Campbell, who also introduced the term "Evolutionary Epistemology".
Campbell's framework rests on three basic ideas:
See also: Gary Cziko's and Donald T. Campbell's extensive of Selection Theory and Evolutionary Epistemology
Mis à jour le 01/04/2016 pratclif.com