The Idea
The sunk cost fallacy is easy to identify in a casino. You've lost three hundred dollars, and you stay because leaving now would make the loss feel final. Everyone understands this as irrational the moment it's described. No one actually does it at a poker table, right?
It's harder to see in a job you've held for six years, even though the learning stopped at year three. A city you moved to at twenty-three because someone else needed to be there, who is now long gone. A relationship that made sense when you were a different person with different assumptions about what your life would look like.
The cost isn't only money. It's time, identity, and the particular version of yourself that grew up around the original choice. Leaving doesn't mean the choice was wrong when you made it. It means the context has changed, and you haven't updated your position to match. What got you here doesn't obligate you to stay here.
The hard part is that sunk costs wear the costume of loyalty, commitment, and perseverance — all things that sound like virtues. And sometimes they are. But virtue isn't the word for staying in a place that no longer fits, out of deference to a person you no longer are.
One Question
If you were making this choice fresh today — with no prior investment, no identity wrapped up in it — would you choose it?
Today's Action
- Name one commitment in your life that you're maintaining primarily because of what you've already put into it.
- Ask the fresh-start question honestly: would a version of you who had never made this commitment choose it now?
- You don't have to act today. But write down the honest answer.
Go Deeper
Leaving is not the same as quitting. Sometimes it's the most accurate response to the information you now have.
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