"Sunk cost" is the amount of investment (time, money, resources) that you have in something. That is different from what its present value is. com/5347133/sunk-cost-fallacy-decisions/
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"Sunk cost" is the amount of investment (time, money, resources) that you have in something. That is different from what its present value is.
https://time.com/5347133/sunk-cost-fallacy-decisions/
Both Nancy and her mother have fallen victim to the sunk cost fallacy, which her mother explains, in a general way, in the next sentence after she mentions it.
What's amusing is that Nancy's mother then does exactly what she has just advised Nancy not to do.
People don't always follow the advice that they give to others.
Or stated differently, it's easier to see the faults in o