I never underestimate the value of repeating well-known errors as a learning experience. Sometimes, a useful way to sink a new concept in is to address the orig

I never underestimate the value of repeating well-known errors as a learning experience. Sometimes, a useful way to sink a new concept in is to address the original problem by yourself in the wrong way, and later apply the right techniques that were developed in order to solve it better. Design patterns come to mind.