Afternoon Delight is a daily diversion for when you’re just back from lunch, but not quite ready to get back to work. Check back tomorrow at 1 p.m. for another one.

Robert Krulwich is thinking out loud again, wondering why it is that humans can’t walk very far in a straight line while blindfolded. (Go ahead, try it.) This animated video illustrates his point.

(h/t: Daily What)