" In the most highly stressed projects, people at all levels talk about the schedule being “aggressive, ” or even “highly aggressive.” In my experience, projects in which the schedule is commonly termed aggressive or highly aggressive invariably turn out to be fiascoes. “Aggressive schedule,” I’ve come to suspect, is a kind of code phrase—understood implicitly by all involved—for a schedule that is absurd, that has no chance at all of being met. "

― Tom DeMarco , Slack: Getting Past Burnout, Busywork, and the Myth of Total Efficiency