Why is prioritizing so difficult? In the abstract, it doesn’t sound so tough. You prioritize important goals over less important goals. You prioritize goals that are “critical” ahead of goals that are “beneficial.” But what if we can’t tell what’s “critical” and what’s “beneficial”? Sometimes it’s not obvious. We often have to make decisions between one “unknown” and another. This kind of complexity can be paralyzing. In fact, psychologists have found that people can be driven to irrational decisions by too much complexity and uncertainty.