Say it with me kids: correlation does not imply causation. Now repeat that 10 times.
And if you still haven’t got the message, maybe you can ask Ava to repeat it for you. If she isn’t too busy causing housing bubbles, that is. Oh you hadn’t heard about that?
For more magnificent correlations (which do not imply causation! Although you never know! And at the very least it causes suspicion!), check out this collection of graphs in businessweek.
Hat tip: Marina Fridman