This is a terrific effect, and it's made even stronger by having the spectator do most of the work.
Yes, the video explanation is a bit long, as some other people have mentioned, but being a
relative novice at cards like I am, I appreciate the longer explanation. (Also, the beautiful
British accent is easy on the ears. =^)
Suggestion, which I hope is not a spoiler as the ending
is shown in the example video. I think the ending could be even stronger if the spectator did ALL of
the card revealing themselves. For example, the spec could turn over their card, then your card,
then the card on the side, and then find the hidden card in the middle of the deck. That makes it
completely hands off from you and I feel a much stronger finish. Psychologically, it's them we
creating the magic and not you. Other than that minor suggestion, this is a great effect, very
beginner friendly, and it is thoroughly explained.