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Sunk Cost Fallacy
Sunk Cost Fallacy: This fallacy is the mistaken belief that because you've already invested time, money, or effort into something, you should see it through even if it's no longer a good idea. It is a mistaken belief that one must finish a path, good or bad, because stopping would “waste” prior efforts. Here, the students explain the Sunk Cost Fallacy in their own words.