The usefulness of rational analysis is, in fact, radically limited to the so-called physical realm. Once we have established ourselves with a modicum of security and comfort in that realm by means of science and technology, rational analysis ceases to have critical, essential value. To the extent that we then attempt to force solutions of nonphysical problems by means of rational analysis, that way of knowledge itself becomes dangerous and destructive. Beyond the point where physical security and comfort are attained, rational analysis has at most play value. The problem of filicide cannot be solved by rational analysis.
Rational analysis can do no more than demonstrate the existence and nature of the problem.
We cannot stop controlling by controlling more, or better, or differently. Kuo Hsi, Landscape. That dilemma brings us to paradox. Western civilization has steadfastly refused to employ tools other than rational analysis over the long term. Language, which is to say, symbol manipulation in all its forms, has been our chief tool for rational analysis.