Econ isn't a science. There are schools of economic thought that completely contradict "basic economics" taught in schools today, and you can't possibly prove that one or the other method is correct.
I have to disagree here. Yes there are schools of thought, but questions like "how does a market work?", "what causes deflation?" are pretty well studied and agreed upon. This is one of those very basic settled questions with a very clear accessible explanation.
Hence, Economics: the dismal science.