Compounding is one of the most powerful forces in the world. In fact, it is the only power law in the universe that exists with a variable in its exponent. The power law of compounding not only is applicable to investing but also, and more important, can be applied to continued learning. The fastest way to simplify things is to spot the symmetries, or invariances—that is, the fundamental properties that do not change from one object under study to another.
