The best kind of proof

I want to give you a demonstration of spooky action at a distance
For this to work, all you have to do is read the instructions below, and then when you get to the part that says “GO” carry them out. Once you’re done, simply keep reading this article.

So here are the instructions of my spooky-action-at-a-distance:
(Read through them once before you try them out)

1. Clasp your hands together with your fingers interlocked, thumb over thumb, index finger over index finger, etc.
2. Now, stick your index fingers out straight, but keep them apart.
3. And then, simply look at the space between your index fingers until something spooky happens. It might take as long as 10-15 seconds, but it might happen sooner as well.

Ready?
GO
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.
.

Are you done?
That means my spooky-action-at-a-distance must have come through across time and space and pushed your two index fingers together until they were touching.

At least, that’s the idea
Hopefully it worked. And in any case, the point is not really to convince you of action-at-a-distance, but simply to illustrate the most powerful kind of proof. And that’s demonstration.

Product demonstrations work very well
You can take a car for a test-drive. You can try a shirt on at the store. You can walk around a home before buying it.

Then there are performance demonstrations
In his farewell seminar, Gary Bencivenga told the story of Elisha Otis, who invented the first safe elevator. Otis got in an open elevator in front of a crowd, while his assistant first cut one and then the other cable holding the elevator in place. Otis’s safety mechanism kicked in, saving Otis and the elevator, and finally convincing people that elevators are safe to use (hello skyscrapers).

This still works today
A while back, a video for the Purple mattress company went viral. The core of the video was a clever demonstration — the raw egg test:

Sometimes though, the demonstration doesn’t even have to be of the product
Like in this post that you’re reading. Or in this Bill Jayme add for Smithsonian Magazine:

This clever demonstration seems to be about engagement

So what’s the conclusion?
Always try for a demonstration. There are many creative ways to do this, and it’s worth putting in some thought to come up with one that works for you.