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  • Yes I hit it!

  • I hit the final note.

  • It's also the name of today's show.

  • Welcome to Michael's Math Magic.

  • I wanna show you a tool today that's very special to me.

  • These are regular old bicycle playing cards that are anything but regular.

  • We here at Vsauce designed these to do something very special.

  • They come in Curiosity Box 12 which many of you already have and some of you it's on

  • it's way to you.

  • When you open the cards up you'll find that you get 52 regular cards with really cool

  • backs.

  • Take a look.

  • It's got Inc on there with some nautical stuff.

  • Some ship wheels some whales and pirate booty as they say in the pirate trade.

  • But I've been playing with these cards for a bit already.

  • They're all shuffled up.

  • I'll shuffle them a few more ties to really convince you that I don't know where any

  • of the cards are.

  • And I'm being really honest at this moment.

  • It doesn't matter what order the cards are in.

  • And then the magic will happen.

  • Alright.

  • Now often a magician will be able to guess a card randomly chosen from a deck.

  • Right?

  • A magician like myself.

  • Not today.

  • No no no.

  • We're gonna go even further.

  • Today the person guessing a card chosen from this deck isn't even in this room.

  • Where are they?

  • Well I will show you.

  • We have taken Jack who works here at Vsauce and locked him away.

  • I'm gonna use my phone camera to show you where he is.

  • Follow me.

  • We gotta leave the studio.

  • Okay.

  • There's Hannah.

  • And let me just carefully walk through the dark, leave the studio, wonderful!

  • Okay now where is Jack.

  • Is he there?

  • No.

  • Where is he?

  • Maybe he's in the refrigerator.

  • Oh no of course he wouldn't be that would not be safe.

  • Sometimes he's up in the loft or he's inside the trash can.

  • Not today though.

  • Nope.

  • Today we have locked him away, not in Testing Room B, but in Testing Room A. Jack are you

  • ready?

  • Yep.

  • Alright let's do this.

  • Okay.

  • So let me make my way back.

  • I want to do this all in real time.

  • No edits.

  • Real magic.

  • Okay going back into the studio.

  • Hannah, I'm back.

  • And it's time for us to use these special cards.

  • Ready?

  • Here we go.

  • I'll give them one more shuffle and then I'm gonna pick a card out of the deck.

  • Now Jack has his phone with him and I'm gonna text him and he's gonna text me and

  • it will be through texts that the magic occurs.

  • Here we go.

  • Let's pick this card right here.

  • I have no idea what this card is and certainly Jack who is not even in this room and is actually

  • as far away as he can be in this office does not know what that card is and I'm going

  • to ask Jack to guess what this card is.

  • Okay.

  • So here we go.

  • Ready?

  • It's time to guess the card Jack.

  • Okay.

  • Let's see what happens!

  • Send.

  • This is what happens when you try to do a trick in real time.

  • There can be some waiting but this is all part of the experience.

  • You can feel the psychic energy between Jack and me and the cards and the phone and Hannah,

  • a little bit.

  • Alright Jack can you do it?

  • I don't know the card.

  • How could he know the card?

  • Locked away in a bathroom.

  • Well perhaps it's not a bathroom.

  • Perhaps it's a throne of magic.

  • King of hearts!

  • Is this the king of hearts?

  • The king of hearts!

  • What?!

  • Excuse me?!

  • Let's try this again.

  • Let's try this again.

  • I have no idea which card is which.

  • I'm gonna pick this one.

  • Okay.

  • I don't know what it is.

  • Jack certainly doesn't know what it is but let's ask him to tell us what it is.

  • Okay.

  • Hello, okay Jack.

  • Can you guess the card?

  • I sent it.

  • I can feel that electricity.

  • Now Jack isn't the only one who can do this and let me reassure you that this is a real,

  • these are real texts.

  • I'm not using some kind of special app.

  • There are no additional cameras in this room besides the ones that are here and here and

  • Jack is not listening to us.

  • He doesn't have any kind of elaborate system of mirrors that allow him to look under the

  • table from inside the bathroom.

  • He really is in there with nothing but his dreams and his phone.

  • And with those tools alone Jack will think about what card this might be and he will

  • be able to miraculously be right.

  • Nine of spades.

  • Is this the nine of spades?

  • There it is!

  • The nine of spades.

  • How the heck is this trick working?

  • Well it's time for me to let you in on a little bit of a secret.

  • Jack knows what card has been chosen because I know what card has been chosen and I tell

  • Jack which card was chosen through code.

  • The special thing about Inq's playing card is that this isn't just a regular deck.

  • It is a marked deck.

  • Which means that by looking at the back of each card you can tell what the card is.

  • If you look at these three cards they all look incredibly similar from the back.

  • Only a trained eye, only someone who knows what to look for can upon close inspection

  • really determine the secret code on the back.

  • What I wanna do isis there a pencil around here?

  • Or any kind of sharp pointing object?

  • Even, actually Hannah, give me your friend.

  • Thank you very much.

  • Okay take a look at the back of this card.

  • We've got ships wheels.

  • Look at the ship wheel in the upper left hand corner.

  • It doesn't matter which way the card is because the secret code is hidden in the upper

  • left hand corner no matter how you rotate the card.

  • You'll notice that there's a ships wheels with 12 handles.

  • Those 12 handles can be read like a clock.

  • Who you look at them you look to see if a handle is missing.

  • In this case on this particular card no handle is missing which means the card is a king.

  • It's that easy.

  • But what's the suit?

  • Well if you look inside the wheel there's a line and the line is thicker here on the

  • right than it is anywhere else.

  • By following typical CHaSeD order which I introduced in the Si Stebbins video just a

  • bit ago, you can from 12:00 around moving clockwise tell what the suit is by looking

  • at where the thicker line is.

  • If it's thicker at the top you have a card that is a club.

  • If it's thicker on the right it's a heart.

  • Thicker on the bottom it's a spade.

  • Thickest on the left it is a diamond.

  • This ships wheel is thickest on the right hand side which means that this is a club

  • heart.

  • This is a heart.

  • A king of hearts.

  • And it is in fact a king of hearts.

  • Let's look at this card.

  • Now this card is missing a handle right there at the 2:00 position so it's a 2.

  • And the line on the ships wheel is thickest at the bottom which tells us this is a spade.

  • A 2 of spades.

  • Boom.

  • Let's do that one more time.

  • Right here.

  • Perfect.

  • Okay.

  • So looking at this ships wheel we see that the handle is missing at the 10:00 position.

  • So this is a 10 and the line is thickest up at the top.

  • So it's a club.

  • A 10 of clubs.

  • Piece of cake right?

  • Unless you know what to look for though, this is incredibly hard to figure out.

  • Of course when you do a trick with these cards you shouldn't just do it like this.

  • Uhh hey uhh uhh what's uhh what's this card?

  • Oh.

  • Uhh well I can tell you.

  • It's the 4 of diamonds.

  • Hehehe.

  • No because it's too obvious.

  • People will know that there's probably something telling you on the back.

  • So I have today performed for you what I call the bathroom magic trick.

  • And I use a code to convey what I know about the card because of what I can read off of

  • the back since it's a marked deck through text to Jack and here's how I do it.

  • The identity of the card is contained in the tex that I send him.

  • The punctuation at the end of my text tells Jack the suit.

  • If I put no punctuation at the end that tells Jack that the card is a club.

  • If I just put a period at the end of the text that tells us that the card is a heart.

  • A question mark at the end of the text says that the card is a spade.

  • And finally of course an exclamation point tells Jack that it is a diamond.

  • So as you can see the punctuation sort of in my opinion is going up in terms of the

  • amount of emotion in it and that's how I remember CHaSed order club, heart, spade,

  • diamond and the order of the punctuation.

  • Jack actually has a cheat sheet with him hidden in his pocket in the bathroom so he can reference

  • it.

  • I have to memorize this.

  • And it's not actually that hard.

  • You practice a few times.

  • You got it down and the effect is really phenomenal.

  • Okay but Jack wasn't just able to tell us the suit of the card chosen he was also able

  • to tell us the value.

  • And here's how I work that out.

  • If the card is an Ace I begin the card with no salutation.

  • THat's right.

  • The salutation, the greeting in the text is how I tell Jack which three cards the card

  • is.

  • Here's what I mean.

  • If I just begin the text with no hello or hi or anything then the card is an ace.

  • If however I begin the text with the word hi, Jack knows that the card is either a 2,

  • a 3, or a 4.

  • If I begin the text with hey which is a little bit longer he knows that the card is either

  • a 5, a 6, or a 7.

  • If I begin the text with the word hello that tells Jack that the card is either an 8, a

  • 9, or a 10.

  • And if I begin the text with the word ready, that tells him that the card is either a Jack,

  • a Queen, or a King.

  • Here what I think makes this easy to remember is that the greetings just get longer in terms

  • of number of letters the higher the card's value is.

  • But now you may be wondering, alright, fine but even if Jack sees the word hey and knows

  • that there's say an exclamation point at the end all he knows is that there's a diamond

  • and that either it's a 5 6 or 7.

  • How do you tell him which of these three it is?

  • Aha!

  • Well what we're doing is using a little bit more secret tricks.

  • Where I put Jack's name in the text or really any proper name tells him which of these three

  • it is.

  • If right after the greeting I say a proper name, either his or maybe the participants

  • or my own, whatever, he knows that of the three the card is the smallest.

  • So if I said hey Jack he knows right away that it's a 5.

  • If however I put his name or the participant's name at the end, for example, hey guess the

  • card, Jack.

  • Now he knows that it's the last card because his name is at the very end.

  • If his name is anywhere else but the very beginning after the greeting or the very end

  • then he knows that it's the middle number.

  • Hey so, Jack, guess the card.

  • That's a 6.

  • That's how it works.

  • It's that simple.

  • Let's do a couple of examples.

  • In fact let's see if he's still in the bathroom.

  • He should be or else he's fired.

  • Like literally that's what his contract says.

  • Let's just pick a card out of here and we'll do this one together.

  • You can be the magician along with me.

  • Okay.

  • So no one's looked at this card.

  • I haven't.

  • You haven't.

  • Hannah hasn't.

  • Jack hasn't.

  • Let's take a look.

  • So this card is missing a handle at 3:00 position.

  • And the stroke in the inside of the wheel is thickest up there at the top so this is