Ah, sunk costs. They can totally mess with our brains, hence the “sunk cost fallacy.” If you’re not familiar with the expression, here’s how Wikipedia describes it: More recently the term sunk cost fallacy has been used to describe the phenomenon where people justify increased investment in a decision, based on the cumulative prior investment, despite new evidence suggesting that the cost, starting today, of continuing the decision outweighs the expected benefit. Such investment may include money, time, or even — in the case of… Continue reading