The deck is not switched at any point of the routine and there are just TWO decks in play. The "Finder" app, used for the routine is designed by Appmazing Magic.
This tech has been around for years, people have used it to cheat in things like live poker in private games and the likes for a long time already. There's RFID as the above poster mentioned, but there's even tiny microscopic barcodes that get printed onto the edges of cards because some places will scan for RFID on cards to avoid cheating (in card games where gambling is involved), and can be read by a pinhole camera/scanner on the top of the device that's made to look like a phone. There's a bunch of diferant ways this could be done (and I belive he used at least 2 techniques like this), but they are all well known techniques already that have been about for a while. The kid just programed the software for it to behave like he wanted which is the "new technology" they are refering too , and it would just show what he wanted on screen etc. and he would of also coded it to recognise which card was missing and do all the order of opperations etc. which still isn't that easy (unless you can code) and is still pretty cool (not really AI though TBF as it's simply spotting what card is not there through process of elimination, and then switching modes to finding that card in the other deck then changing modes then arranging the order of the other cards etc. etc.). Really amazing for a 14 year old to pull this off tho, it would probably take me years to recreate this if I tried, and I would have to spend most of that time learning to code xD.
Wonderful routine! Normally the use of a phone or tablet feels unnatural or non-magical, but you incorporated into your act in such a perfect way. I really enjoyed this act!
This was excellent! You have what it needs to become a really great magician. Very professional presentation with those two breathing down your neck. Respect!
I think I have a clue how he did it. He made the card float when they weren't looking, and then when they did, it was already well above their heads. Very impressive, considering the battery life on card-floating drones is really short (we're talking gigajoules per second). You have to be extremely efficient and finish the trick before the card comes crashing down on their heads.
i'm thinking programming did bigger part of the magic. they caught you, cuz they knew the other older methods and that left them with obvious. but i'd like to note that any advanced technology is indistinguishable from real magic, because they're the same exact thing. what's magic to one, is science to other.