The headline implies that a joke is coming, but there is no joke here. Instead, I would like to look at corrections through the eyes of Charles Dow and Leonardo Fibonacci. These two may seem miles apart at first glance, but the numbers suggest otherwise. In fact, Dow and Fibonacci are pretty much on the same page when it comes to retracement amounts. Charles orders a frosty mug of beer, Leonardo orders a glass of Tuscan red wine and they start talking technical analysis.