I think an analogy to this would be the difference between studying physics in a text book and actually doing a lab experiment in physics. You can read all you want about physics and learn the theories, equations, and proofs. However, you are probably never going to get much comfort with it until you apply it to something in the real world. When you a do a lab experiment, thousands have done the same experiment before hand. You are not discovering anything new. You are just getting comfortable with using the scientific method to confirm things.
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