我觉得 不管是 发生在过去的“沉没” 还是 付出了的“成本” 这里都是隐喻性的
重点是说明这个东西和你的选择无关，不管你怎么选它都在那 你改变不了
那直觉上既然你改变不了，你决策的时候就不要考虑它了
这里又可以推一下lishengwu的新作了
A Theory of Ex Post Rationalization
https://arxiv.org/pdf/2107.07491.pdf
People rationalize their past choices, even those that were mistakes in hindsight. We propose a formal theory of this behavior. The theory predicts that sunk costs affect later choices
