We often find it tough to admit that we're wrong or made a bad choice.

The "sunk cost fallacy" happens when we refuse to change course despite clear evidence that we should.

Pulling out of sunk-cost thinking requires letting go of old choices and focusing resolutely on the future.

Runners make fluid pace shifts throughout a course based on changing conditions and their own energy reserves. Likewise, skillful pacing in any arena calls for frequent reckoning and self-assessment: deliberate pauses, brief or drawn-out, when you consider where you are now, where you want to head, and what adjustments you can make to get there.

This kind of assessment shapes everyday decisions, but it can also shift the larger trajectory of our lives. One of the commonest pacing errors involves........

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