
University of London psychology prof Chris French has a complex relationship with parapsychology (research into, for example, extrasensory perception or ESP). At one time, he believed in it, then was, for four decades, a skeptic — but he has now come round to a new approach to the question: How do we decide what is and isn't "science":
Before we can assess the scientific status of any discipline, we must first consider what philosophers of science refer to as the demarcation problem. What criteria must be applied in order to decide whether a discipline is a true science or not? This is a fascinating topic that has been a subject of discussion amongst philosophers of science for a very long time. A full discussion of this issue is way beyond the scope of the current article. Suffice it to say that many commentators have ultimately concluded that it is simply not possible to devise a set of strict criteria that can be applied in such a way that they correctly classify all true sciences as such and exclude each and every example of non-science, including pseudosciences.
Does that mean that there is no difference between science and pseudoscience? No, it does not. Although there is no definite dividing line between day and night, we can all agree that clear examples of each are easy to find. In the same way, we can all agree that, say, physics and chemistry are clear examples of true sciences and astrology and homeopathy are excellent examples of pseudoscience. So how are we doing this?
The best approach appears to be one that does not attempt to apply a definitive list of strict criteria but instead accepts that there are certain 'benchmarks' that characterise what we think of as good science.
Chris French, "Why I now believe parapsychology is a science not a pseudoscience" at The Skeptic (September 22, 2021)












Comment: It's a mistake to think of authoritarianism as a phenomenon found only on the right side of the political spectrum. If one looks objectively at the current state of the world, one will see left-wing authoritarianism is alive and well.
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