You’ve probably seen a house of cards. Some people can make amazing structures out of simple playing cards, leaning them together by fours until they have used a whole deck or more. However, no matter how fantastic the finished work is, we all know that nothing holds it together; the whole “building” is fragile and will eventually fall. Such is the nature of any edifice that lacks cohesive power: without a binding force, it will come apart, often with disastrous results. Thus we get our cliché: “It will fall like a house of cards!”