"Friction" is a great word. The author is essentially advocating a low-margin lifestyle. There is little spare capacity or other tolerances engineered into the

"Friction" is a great word. The author is essentially advocating a low-margin lifestyle. There is little spare capacity or other tolerances engineered into their choices. They may have cash in the bank, but they don't have any reserves of interior space, exterior space, or transit capacity. Instead, they rely entirely on being able to acquire that on-demand. That works out most of the time, but it's a risk. And, like any other risk, it needs to be planned for, and it carries its own emotional and experiential weight.