The 5Cs refers to the cycle by which competence can actually lead to chaos. It sounds impossible—shouldn’t increasing your competence and skill set be a decent buffer against encroaching chaos? Sure, in some scenarios—you can’t clear a house safely, win the Super Bowl, or even teach a child to read without some competence in whatever you’re trying to achieve. But competence has a dark side, too, one that I’ve seen time and again in my own experience. It can lead to complacency, and when the stakes are life and death, complacency kills.