Jennings Principle 

"When the cost of efficiency is greater than the cost of inefficiency"

when the cost and efficiency to build the wall in a factory and ship it, is actually more than the having the inefficient carpenter build it onsite is the Jennings Principle at work.

Jennings Principle by Texasrekey January 1, 2015

The Jennings Principle

The Jennings Principle is a scientifically proven mathematical equation in which it is either proven or disproven whether said man has a chance with a said woman. This law deserves to be supreme law of the land.

According to the Jennings principle, Will has no shot with Megan

The Jennings Principle by The Hreet January 11, 2010