The author postulates a few ideas about manners and courtesy, and starts to recognise that business transactions (employment relationships) don't actually care about these things, even though the human beings who populate these systems hold these values.
The nash equilibrium in a buyer-seller market like the employer-employee relationship is for both sides to defect. Humans don't behave optimally, because they aren't pure rational creatures, they are imbued with some socialisation and cultural memory. So humans try to treat with these organisations as though they are other humans, and will respond to good-will with good-will, but this is not rewarded, and ultimately they change their behaviour in response to a poor environment.
Capital does behave short term optimally. Optimal economic behaviour is to betray the person opposite you, and violate and exploit the commons until the commons collapses entirely, like what we see today. At some points in the past, capital has been subdued by a human operator who will apply courtesy and social norms to prevent these ugly actions, but capital has now become too intelligent to bother with this, and the result is a sequence of increasingly insane and inhuman processes, such as what we see here with the job market.
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