A reminder from the Economist about the survival of the fittest. Some speak of the persistence of the supposedly inferior QWERTY keyboard and the triumph of the VHS video standard over the supposedly superior Betamax. According to Stan Liebowitz, author of Re-Thinking the Network Economy: the QWERTY keyboard is about as fast to use as the most plausible alternatives, and VHS had important non-network advantages over Betamax�notably, longer tapes.