If you've never heard of Ricky Jay, not to worry. You'll have seen him in a few TV shows, most notable being Deadwood and a few movies too.

However, he's also one of the foremost sleight-of-hand and card control experts. Here, in a documentary from the early 90's, he shows his incredible card control skills. 

By using memory and mathematics, he's able to predict exactly what card he'll get in any given shuffle. Even if you've no interest in cards, this is still pretty incredible to watch.