Best Card Trick Ever! No Setup!

[@DwaynesGuitarLessons]

Awesome trick. Thank you for showing. I'm not too sure how it's done either. Some magical mathematic certainty, as all self-working card tricks are. Good luck on your journey finding out how it's done. If you do find the answer, remember, the #1 rule of magic... Never tell how a trick is done. Peace.

[@indianasb59]

It’s probably the same trick that I learned called 7 of 3.

[@williamclements273]

and that certainly explains it!