Again, irrationality can hurt, and here we have evidence that a particular form of it is widespread. The people accused around hurt, and the clients—… - Robyn Dawes

People treat reason as if it were the most minor and harmful aspect of a whole human being. It is as if a soldier standing guard were to say to himself: “What good would my rifle be I were now to be attacked by a dozen enemies? I shall therefore lay it aside and smoke opium cigarettes until I doze off.”

A closely allied type of irrationality is termed irrefutability. This name relates to the idea that a good scientific theory should be refutable: At least in theory, there should be some evidence that would lead us to doubt or reject the theory. If all evidence is simply interpreted as supporting it, then it is termed irrefutable, which is a hallmark of pseudoscience, not of science.

Thus, logic and mathematics are important in determining “what is,” though not necessarily implying what is. “What is” must be consistent with logic, namely, with “what could be.”
Why? I don’t know. To me one of the great mysteries of life is that by simply thinking logically we can determine a lot about the universe—or at least conclude what can’t be, which together with empirical observation leads us to some pretty good ideas about what is.