How Various “Irrationalities” Proven to be Rational

Various“irrationalities” have always been deemed distinct from human reason or “rational thinking”. However, another long-standing view is that“irrationalities” are really some kinds of rationality that just need to be somehow proven. It would be most satisfactory if the proof could be done because a successful proof can re-justify the mainstream rational principle, then minimizing the price of reform of economics. This paper briefly introduces a ready-made solution.