The sunk cost fallacy doesn’t always have to do with money. Imagine you’ve signed up for a new class offered at your university. After the first week, you realize that it doesn’t really match up with your interests and you’d much rather swap it out for something else. Luckily, you can still drop the class. Yet, when you think about it, and factor in that you've already handed in an assignment, you might still opt to stick with it. This is where the sunk cost fallacy kicks in, hand-in-hand with the status quo bias—our preference to keep things the way they are to avoid potential losses.