|Lake Michigan shoreline, Michigan
I meet, on occasion, someone who says, "Science explains everything." From this follows the idea that: If science cannot in principle explain something, then that "something" does not exist. This is called "scientism."
"Scientism" is the belief, indeed the worldview, that claims science is the only valid way of seeking knowledge and truth in any field. On scientism, science explains or will explain (at least in principle) everything there is to be known.
University of South Carolina biologist Austin Hughes (deceased 2015) addressed this in his essay "The Folly of Scientism." He quotes Peter Atkins, who says that science has "universal competence."
Hughes scoffs at this and writes:
"Central to scientism is the grabbing of nearly the entire territory of what were once considered questions that properly belong to philosophy. Scientism takes science to be not only better than philosophy at answering such questions, but the only means of answering them. For most of those who dabble in scientism, this shift is unacknowledged, and may not even be recognized. But for others, it is explicit."
Atkins, for example, says, “I consider it to be a defensible proposition that no philosopher has helped to elucidate nature; philosophy is but the refinement of hindrance.”"
Hughes shows how this kind of thinking over-reaches. Scientism "exceeds its grasp." To get at this Hughes takes us to the roots, the foundation, of certain scientific and philosophical ideas in which scientism is grounded.
He makes a nice distinction between science per se and what scientists say. For example, there has been a good deal of controversy over stem cell research. While many in the discussion are scientists, there is "little science being disputed: the central controversy was between two opposing views on a particular ethical dilemma, neither of which was inherently more scientific than the other. If we confine our definition of the scientific to the falsifiable, we clearly will not conclude that a particular ethical view is dictated by science just because it is the view of a substantial number of scientists."
Hughes questions the idea that science is essentially "self-correcting," in the sense that self-correction will necessarily occur. He writes:
"Alas, in the thirty or so years I have been watching, I have observed quite a few scientific sub-fields (such as behavioral ecology) oscillating happily and showing every sign of continuing to do so for the foreseeable future. The history of science provides examples of the eventual discarding of erroneous theories. But we should not be overly confident that such self-correction will inevitably occur, nor that the institutional mechanisms of science will be so robust as to preclude the occurrence of long dark ages in which false theories hold sway."
Hughes rightly dismisses the idea that science and scientists are above political, petty, and irrational thinking. Those who think science to be epistemtically or metaphysically neutral attain a status quite like cult leaders. It's time to debunk the scientistic "aura of hero worship." Science does not possess some special, transcendent epistemic reliability. And it fails to explain everything, to include the claim that science explains everything.