The Doppleganger has long been a mystery, but now consider it solved.
"A double, an identical replica of a person. The idea behind this is that everyone has a Doppleganger, an identical copy of themselves somewhere in the world. If the person is good, then the Doppleganger will be evil and vice versa. It is even said that if the two should meet, then they will both perish.
Although there is no evidence that Dopplegangers exist, some people have actually reported claims of witnessing what they believe to be their Doppleganger. In all likelihood however, Dopplegangers are an aspect of myth only."
Dopplegangers are so real, here's proof:
On the left is Rob Taxpayer, on the right is some dude that's our friend on facebook:
The question is - which one is evil?