We've all been there. You're at the grocery store, and it's busy. You've come in to grab a few things and you scowl trying to find the shortest line to check out. You're not sure which line to pick, so you choose one and get ready to wait.
A minute goes by and you notice the line next to you is advancing faster. You do a quick queue switch. As soon as you do, your old line starts to speed up again and fills up with a few more people. You can do nothing but shake your head. And the same thing happens with traffic. The classic film "Office Spacequeue" opens with a sequence so recognizable that we can't help but laugh as the protagonist, late for work, tries to switch lanes only to be continuously stuck in the slower lane. These situations beg the question, why does it always seem like the other lane is moving faster?