Have you ever gone to the supermarket and found several lanes open and had to pick one? What inevitably happens? Your lane is the slowest. You've been there! What do you do? You move to another lane, because it's moving faster, right? Me too! But then that lane slows down, and you move to another lane, then another, and another. Soon you realize that the people who got in line after you are all done and heading out the door, and you're still at the end of the line!