Regarding "Enpai" and "Opai", please refer to "Western Medicine" and "Traditional Chinese Medicine".
Objective laws are not subject to human will. Regardless of which school is admired, which policies are used, whether the trough is delayed or the peak is advanced, the law is the law. If there must be a useful panacea, there must be a policy that can be universally applied, then it becomes subjective, approaching idealism, and deviating from the fundamental of economics - rationality.
From ancient times to the present, there is no method that can completely transform the economic cycle (similar to a sine wave) with ups and downs into a "straight line" that can be artificially controlled and desired.
Whether a method is effective or not, I personally think it depends on whether it "assists the operation of the law" or "intervenes in the operation of the law". This is also the biggest difference between Traditional Chinese Medicine and Western Medicine.
Keynesianism is more like a "collective carnival", more like a "national Ponzi scheme", and more like a "never-ending game of passing the buck". In other words, it is a "subjective law".
I believe that just like individuals experiencing burnout, there is also a certain degree of burnout between countries. When everyone is trying to boost the economy, increase GDP, and waste effort on solving fundamental problems that cannot be solved, pretending to work hard, you are the only one who is awake while everyone else is drunk. You tell the people, "Stay calm, this is the law! This is the law! None of us can do anything about it, and it will happen frequently in the future. Everyone needs to get used to it." No one will believe such a government, and in any democratic country, the current government will be overthrown and rejected by millions of voters. (People only believe what they want to believe and see what they want to see). You just need to know that behind all kinds of complicated events, they are caused by these two opposing laws.
Looking at it practically, it's like students. Everyone is working hard, staying up late, and studying hard for exams, but you see the "essence of learning" in advance, striving to learn skills instead of just preparing for exams, and as a result, everyone will exclude you. It's like girls trying to lose weight. What is beauty? Who determines the standards of beauty? Does beauty have to be thin? This is a subjective law. When everyone believes that A is correct, even if B is the right answer, the role of B becomes counterproductive. This is the dialectics of objective laws and subjective laws.
In summary:
"No one should delude themselves into thinking they can change objective laws or surpass them. Any behavior that disregards objective laws will result in a backlash a thousand times over."