You might have been in this exact situation: you’re walking down the street and you spot someone who looks just like someone you know. It might be a close friend, a well-known public figure, or even yourself. It can be quite a spooky moment because there’s roughly only a 1 in 135 chance that there’s even a single pair of exact doppelgangers, according to BBC Future. Nonetheless, there are plenty of folks who are ‘close enough’ to the real deal to warrant your attention.