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I’ve been thinking about sunk costs lately.

A sunk cost is a cost that has already been incurred and thus cannot be recovered. Sunk costs are excluded from future decisions, because the cost will be the same regardless of the outcome of a decision. (Investopedia.com)

For all intents and purposes, sunk costs are irrelevant to decision-making. This is a concept I’ve grasped fully. Intellectually, at least.

Yet I have made more than a few decisions based on the sunk costs of my life.

He did this to me then, so I’ll do this to him now.

Emotional logic. #paradox