In the last couple of weeks, a JPG has been making the internet rounds and, in the process, has gathered more than 6,500 Diggs (not that that is any measure of successful success, but still…) and has been mentioned in dozens of design and culture blogs, including many which I frequent and respect. The problem is that the JPG is wrong and disingenuous. It comparatively illustrates the evolution of the Pepsi and Coca-Cola logos from their beginnings in the late nineteenth century to their cur...