As usual, Randall Munroe says it all

http://xkcd.com/552/

And while we’re on the subject of causality, a reader just reminded me of this wonderful graph from the Church of the Flying Spaghetti Monster showing how the lack of pirates are responsible for global warming  (If the FSM doesn’t ring a bell, you need to work on your geek merit badge.  Check out the link.  It’s about intelligent design taken to its (il)logical extreme).

vengaza.org

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