Christmas Trees, the Fulcrum, and a Metaphor for Persuasion
24th January 2007
Over the Christmas holidays a commonplace event occurred that provides me with a metaphor for understanding how to do persuasion. See, a neighbor called a couple of weeks before Christmas to request our help in putting up their tree. They had gotten a very large tree that hadn’t looked so large at the tree farm or even on top of the truck, but now was looking like something you’d use as a replacement telephone pole. So, they called in the hill reinforcements.
When I arrived at their house I, too, was immediately struck at just how big the thing was, easily 12 feet with beautiful, symetric branches. An adult could not grasp the trunk without having to stick your face deep in the needles. And while it would fit in the great room with cathedral ceilings, it was going to be a monster to install. My mind turned at the engineering possibilities. I talked with the neighbor, Dwayne, for his ideas. Now, Dwayne is a very bright physical scientist with an international reputation and while my background in quantum or mechanical physics is a bit light, I know enough about his field to know that he’s got some serious smarts in his head. (And, practical smarts, too; he had enough sense to get his wife to rally the troops to fight this tree.)
Dwayne’s idea was to haul the tree into the room and place it lying on its side on a couple of saw horses. “You mean, like we’re going to cut it up for firewood?” I asked. “Yep. And then we move the saw horse at the bottom end of the trunk up toward the top of the tree until it tips over, you know, a fulcrum.”
So, we dragged the tree into the house (perhaps another blog post someday – that tree did not go quietly into the house) and got it up on two saw horses. Then Dwayne brought out the tree stand. It was one of those big, green circular plastic jobs with the four pairs of long handled screws, but he’d customized it by nailing the stand into a 3 square foot piece of plywood for greater stability and strength. Dwayne eyeballed the tree trunk, then kicked the tree stand with his toe in line with some imaginary path he could see in his mind’s eye. “Okay, we’re set.”
Then his young son, Garrett, and I picked up the tree at the heavy end at the bottom of the tree while Dwayne moved the saw horse a bit closer to the top of the tree. We sat the tree back down. It still looked like it was ready for the chain saw. So, we lifted it again and Dwayne moved the saw horse up another couple of feet and we sat the tree down again. This time, however, the trunk of the tree was quivering like some weird wood magnet was pulling on it. Gravity had the tree in its grip and the tree was shaking just off its balance point. So, the kid and I lifted the tree one last time as Dwayne moved the saw horse, then, voila, the tree tipped effortlessly down, gravity drawing its weight and I just guided the fall of the trunk along that imaginary line Dwayne saw, the tree fell into the tree holder and we easily walked it upright while Melanie and Regina got under the tree and started turning the screws to secure the tree. It was literally the work of falling off a log.
The point of this fun story is the correct application of a scientific principle in a specific engineering circumstance. There were a lot of different ways to handle that tree, but when we put it in the thrall of scientific principles (gravity and the fulcrum), the whole process was shooting fish in a barrel. The trick, though, was not simply seeing the scientific principle, but also being able to construct an engineering solution that capitalized upon those principles.
We face the same kind of problem with applied persuasion. If you read the CIG Persuasion book, it’s fun to learn about things like dissonance or attribution or the different forms of conditioning and the two routes. But, how do you make it happen in the real world? I know many very bright and talented persuasion researchers who would starve as marketing experts or sales experts or politicians or anyone who uses persuasion and influence to make a living because they are good at science, but not so good at engineering. And the same pattern holds in reverse. Many people who try to make a living with persuasion and influence often have no idea why things work or don’t work and can’t predict very well their chances of success because they really do not understand the science behind their “engineering” attempts.
The basic trick is to know the science, then look for ways to get your receivers into an “engineering box” that capitalizes on that science. Dwayne knew the science of gravity and the fulcrum, but the trick was to get that damn big tree into an engineering box so that we could use gravity and the fulcrum. That’s why he got the saw horses and called the neighbors. The same holds with persuasion and influence. Once you understand the scientific principles, your applied engineering problem is learning how to manuever receivers into the ELM box or the CLARCCS cues box or the dissonance box and then let gravity and the fulcrum go to work. Alternatively, if you can’t figure out how to move people into a particular box, your applied engineering problem is to instead figure out what kind of box the situation naturally presents, then determine if there is a scientific persuasion principle that could be applied.
For example, it is difficult in the natural world to easily manipulate the WATTage of receivers. There’s simply so much going on and so many available sources of information out there that you can’t control them and grab the dimmer switch of a person’s WATT and turn it higher or lower. Therefore, since you can’t easily or automatically control the route of persuasion, you must have both strong arguments and strong cues available for either circumstance. Once you identify (not manipulate, just identify) the processing state of the receiver, you then move them into either the argument box or the cue box, deliver the persuasion tool and let science do what it does.
So, the next time you’re trying to do applied persuasion think with science and engineering. What are the principles and what is the box?
Merry Christmas! Happy Persuasion and Influence!









