Taking a Random Thought to Get the Mind on a Big Question

What can supermarket pricing tactics teach us about which patients get card surgery, and what does that tell us about the problem of over use in medical care? Questions like why children with summer birthdays are more likely to get the flue. I'll lend this pilot with a public service message. If there's a race happening in your city and someone you love happens to be running in it - don't count on your normal parking spot. Go really early or take public transportation.