You don't really want to get me started on this facebook trend. For those of you who do not sit in front of facebook daily, let me explain (and congratulate you for using your time in better ways): This so called "Doppelganger" Week is the week where your facebook friends change their profile pictures to a celebrity they have been told they look like. The sad thing is that someone must have lied or been severly intoxicated upon letting these words slip out of their mouth.
Let us start out with the definition of doppelganger. Education to the uneducated. The origin of this word is German. Merriam-Webster defines this word as "a ghostly counterpart of a living person." I believe what this definition is getting at is that if you died and decomposed for a few months, then I went blind, you may look like this celebrity. Good thing they put the "ghostly" in there for clarification. Basically, someone could have called it look-alike week and ended up at the same place... with average people sadly believing they look like celebrities. Thank God the week is coming to an end.