Playing card fact of the day

I'm currently reading Chances Are..., a book about probability. There are some interesting facts in this book.

Did you know that if you properly shuffle a deck of cards, it is unlikely that anyone else in the history of the world has ended up with the specific sequence of cards in your shuffled deck?

In other words, there are so many potential combinations of cards in a shuffled deck that it's statistically almost certain that each shuffled deck is totally unique.

Over a long period of time, repeats will certainly occur, but given that 52 card decks were invented only a few centuries ago, it's unlikely that it's happened yet.