Framework

Sunk Cost Release

Sunk cost release separates respect for the past from responsibility for the future. It asks whether the next hour, dollar, conversation, or commitment still deserves to be spent from today forward.

From Thinking, Fast and Slow by Daniel Kahneman

When this helps

  • You are staying mainly because you have already spent time, money, or reputation.
  • A project, role, relationship, or plan keeps asking for more without improving, but stopping feels wasteful.
  • You need to decide from today forward instead of defending yesterday.

How to use it

Step 1

Name what is already gone

Write the time, money, effort, reputation, or identity you have already invested. Mark it as real, but unavailable for the next choice.

Step 2

Ask the fresh-start question

If you had not invested anything yet, decide whether you would still choose this path today with what you now know.

Step 3

Choose the next investment

Compare continuing with redirecting based on future value only, including the next hour, dollar, conversation, or emotional burden each path requires.

Watch for

  • Treating quitting as waste when continuing may waste even more.
  • Confusing loyalty to a past choice with responsibility for a better future.
  • Ignoring reputation fears that make the sunk cost feel larger than it is.

Related thinking traps

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Try it now

Would I start this again today if none of the past investment existed?

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