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I fail to see the humour in this. Uncontrolled emotions often lead to illogical thought processes and behaviour. Illogical behaviour is at best suboptimal or counterproductive, and at worst outright destructive. While metaphorically beating one's emotions into submission might sound odd to most humanoids inhabiting this planet, it is necessary due to our brain's functioning and our current inability to change or improve upon it.

τλ;δρ emotions are shit, rationality must prevail.

>>15
Choose some "goodness" metric. Consider two methods for decision-making (input is an environment and a query, and output is a decision). If you analyse all cases where method A (rational thought) and method B (emotional response) yield the same decision, you learn nothing about the differences between the two
No, you learn that emotions, being part of the human experience and the well being of people, can be a part of rational decision making. Such as when you reason about your emotions and your happiness and that of others, how will taking a certain decision will make you feel in the future, the soundness of your aspirations, and in general, living as a sentient being. Not taking them into account at some level is irrational; it will only result in your unhappiness.