" The Rules of Life. The first rule we came up with was: Be here now. It’s a good survival rule. It means to pay attention and keep an up-to-date mental model. The second rule was: Everything takes eight times as long as it’s supposed to. That was the friction rule, which travelers in the wilderness will do well to heed. "

― Laurence Gonzales , Deep Survival: Who Lives, Who Dies, and Why