The science of listener attention

From the West Wing:

”Food is cheaper. Clothes are cheaper. Steel is cheaper. Cars are cheaper. Phone service is cheaper. You feel me building a rhythm here? That’s because I’m a speech writer, I know how to make a point. It lowers prices and raises income. Do you see what I did with ‘lowers’ and ‘raises’ there? It’s called the science of listener attention. We did repetition, we did floating opposites, and here comes the one that’s not like the others. Ready? Free trade stops wars … and we figure out how to fix the rest.”