decision making

You finish books you hate because you started them.

The sunk cost fallacy predisposes you to continue an endeavor based on past investments.

Replace the word "forces" with "predisposes" or "biases" to accurately reflect the voluntary nature of the decision-making process.

Abandoning a failing path is not a loss of time.

Where this comes from

Study: Arkes and Blumer, 1985
What the check found: The source is correct, but the phrasing "forces" is too strong. The sunk cost effect is a bias that increases the likelihood of persistence, not an absolute constraint that removes agency.
Confidence: Well replicated

One of these every day, and every one names the study it came from. When a finding is contested, it says so.