unnecessary knowldge-our double

Hello everyone, it's time again for a bit of unnecessary knowledge - here we go:

Do we have a double?
Yes and no:
Our brain perceives faces as a whole, which means that as soon as four facial features are the same, it is actually already a Double for our brain.
The probability for it lies with approx. 1 to 10 million...thus not at all so improbably.
However, a nearly perfect double does not exist...unless with twins or if one would clone humans.
But that's it again:
Now it's your turn: Do you have a double...that is one you know?
See you next time!
-Hive on