Ah yes, the sunk cost fallacy! Just because you’ve spent $20 dollars in the past doesn’t mean you should spend $20 more to realize $15 in gains. A lot of times

Ah yes, the sunk cost fallacy! Just because you’ve spent $20 dollars in the past doesn’t mean you should spend $20 more to realize $15 in gains. A lot of times dollars are man-hours which are harder to estimate though.