Mindfulness Meditation - The Sunk Cost Fallacy

i once took a jet that was put together by europe. And in it it flew faster han th speed, i sound. It could get you from, like, the us to paris. But it was so small a that you couldn't get the many people on it,. So it ant profitable. Sunk cost fallacy is that kind of thinking. A good economist will tell you, look, it doesn't matter how much you've put into it. The way to of it is how much am i going to have to a a to put into it from here on out? And what is going to be the pay off?