Most decisions don't require that much thought. They're low stakes and can easily be changed. To build on the professor's metaphor: don't spend a week in the li

Most decisions don't require that much thought. They're low stakes and can easily be changed. To build on the professor's metaphor: don't spend a week in the library in it'll only save you a day. If it's a bit more important, do a quick Google, but only break out Excel for the comparison tables if the decision is life-changing. Honestly, the most important thing that professors don't teach and real life does is that sometimes the optimal thing to do is to not do the optimal thing.