Here is the real domino theory - gay man to gay man, bisexual man to straight woman, addict mother to newborn baby, they all fall down and someday it will come to you.
Vietnam was a lie but at least there was a political agenda. It was the domino theory. Iraq is about nothing but George Bush's ego laced with imperialist ambitions. And it was helped by your government.
I call it like the domino theory of reality. If you can go one step at a time and it seems to make sense, you can then take your audience into an area that is relatively outlandish.
Just because we eat together does not mean we eat right: Domino's alone delivers a million pizzas on an average day.
Experience without theory is blind, but theory without experience is mere intellectual play.