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Sunk Cost Drift

High Impact Pattern

You've put so much time, money, or ego into something that walking away feels impossible — even when staying is costing you more than leaving ever would. The past investment is gone. Don't let it eat your future.

Past investment continuing to drive current decisions

Risk Analysis

Escalation of commitment — resources poured into failing trajectories instead of reallocated.

Key Signals

These phrases and thought patterns often indicate sunk cost drift is active:

invested too muchcan't stop nowsunk costalready spentwalk awaytoo far inalready investedtoo committedgone too farkeep goingcan't give uptoo much to quitdon't want to wastealready put incommitted too muchcan't back outalready put so muchtoo much time already

Breaking the Pattern

Ask: 'If I were starting fresh today, would I make this same choice?' If the answer is no, the sunk cost is the cost of learning. Leave it behind.

The Reframe

"If you find yourself in a hole, stop digging." — Warren Buffett

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All 12 Decision Patterns