It was the use of the term "skeleton key" that I think brings it down to the layman's level (it's the part where I thought "Oh."). They still won't understand

It was the use of the term "skeleton key" that I think brings it down to the layman's level (it's the part where I thought "Oh."). They still won't understand how it works, but it provides an intuition of the nature of the problem that most people could grasp (vs a presentation where the vast majority of people wouldn't get past the first page, even if they looked).