evolutionary lag

From This is Your Brain on Music, The Science of Human Obsession by Daniel Levitin I find this quote worthy: To restate the summary principle of evolutionary biology, "Genetic mutations that enhance one's likelihood to live long enough to reproduce become adaptations." The best estimates are that it takes a minimum of fifty thousand years for an adaptation to show up in the human genome. This is called evolutionary lag -- the time lag between when an adapatation first appears in a small proportion of individuals and when it becomes widely distributed in the population. Gee, I figured it was going to take some time but I did not think it would be THAT long. I guess we better figure out a better way to handle our Blackberry devices. The solution to Blackberry thumb is not around the corner. What solutions would you like to see? A cure for the common cold? A cure for aids? A cure for cancer? ???