THEY WORKED WITH HIGHLY FLAMMABLE MATERIALS. They worked with tools and contraptions that could maim or kill. They trapped themselves underwater, on purpose. And they blew up a lot of stuff. All in the name of science, education, and entertainment. They were the Mythbusters.

When asked about the do-not-under-any-circumstances-try-this-at-home experiments they did on the show, cohost Adam Savage said:

 “We had some close calls. We’ve had parts of explosions go over our heads. That was way back in the beginning days. But those close calls all served to do a couple of things. One, every single time we had one, we rejiggered every safety procedure until we felt confident in our safety margin. This is the thing: you’re never gonna be able to make something safe. You can increase the margin of safety. As long as you’re holding to that, and you don’t suffer the illusion that you have made something safe, then you stay in that mental state that allows you to deal with the contingencies.”

The way I understand it, the margin of safety is that zone between the possibility of something bad happening and the likelihood it will actually happen. It’s not just the distance and the reinforced concrete barrier between you and the huge, razor sharp, flaming, spinning, poison spewing, death machine, it’s also about your mental state — from the inception of the idea through its execution, and even after. 

Have you thought it through? Have you taken into account how things might go sideways, and do you know what to do if they do? Are you aware not only of what you’re doing but also of what’s happening around you? And are you willing to call it all off if something doesn’t seem quite right?

Margin of safety is about taking as much danger as we can out of a dangerous thing. It’s the opposite of, “Hol’ ma beer.”

While margin of safety thinking appreciates luck, it doesn’t factor it into the equation. Luck has a habit of not showing up when summoned.

Instead of thinking, “Nothing bad ever happens to me,” margin of safety thinking is more like, “Nothing bad has happened to me so far, but it might, so I’ll try not to turn off my brain.”

 Sargent Esterhaus of “Hill Street Blues” always ended roll call with, “Let’s be careful out there.” But what does it really mean to be careful? Not taking chances? Not doing anything dangerous or foolish? Sure, but in order to do that we need to be aware of what we’re doing, what we’re thinking, what’s happening around us. How can I know I’m about to do something stupid if I’m functioning on autopilot?

Becoming a nomad means living a new way. We can’t successfully live a new life thinking and acting our old ways — ways that might be so familiar we don’t even think about them anymore. 

How much of a margin of safety is necessary? That depends upon the size of risk and whether if falls within one’s comfort zone. I don’t imagine anyone reading this post plans to disintegrate a cement truck with 850 pounds of ANFO like Mythbusters did, but completely changing your life to live in a vehicle can seem just as disruptive. So stay alert and aware, think things through, make prudent decisions in your nomadic life. And be careful out there.