2:20 "these are perfectly normal every day playing cards" From this, I have reached the conclusion that Matt Parker is about 60cm tall.

@madlad255

4 жыл бұрын

So you're anti-psychic to Matt? Nice!

@LateMax2359

4 жыл бұрын

I see you are metrically civilized. I would refer to Matt as 23 & 3/5 " to be as barbaric as those gigantic cards.

@MWSin1

4 жыл бұрын

@@LateMax2359 Oh my god. _Fifths_ of an inch? Blasphemy! Twenty three and five eighths, please. However, if you want to be proper: 2 light nanoseconds.

@BorhnN

4 жыл бұрын

So, this had to be the first comment, isn't it? I guess I'm a psychic now.

@codinginthesaddle5641

4 жыл бұрын

I kinda want to see the maths for that

People said that buying a big 32:9 monitor was stupid, but who's stupid now?

@Morgow1

4 жыл бұрын

At least I have 21:9 that helps a little.

@jasondeng7677

4 жыл бұрын

the pixels on the far left and right: "FINALLY!!!!"

@Ghozer

3 жыл бұрын

I just spanned across 2x (16:9) screen, and effectively had one person on each display... Looked great :D

@comp.lex4

3 жыл бұрын

You, because you can't figure out how they did it

@curtisbme

3 жыл бұрын

Didn't even realize it until it was over and I read this comment. Wasted my one chance...

Solved it.. you tried 3 million times and took the one clip that worked!

@Twigpi

4 жыл бұрын

Bahaha, that made me burst out laughing 😂

@stevieinselby

4 жыл бұрын

How to avoid lockdown boredom!

@efanchen2440

4 жыл бұрын

you are right. @Matt: how long does it take for this if you use the drawingspeed of the video and cancel everytime there is a fail?Include the intro in every try...

@danielyuan9862

4 жыл бұрын

@@bosstowndynamics5488 Actually, since the same outcome can happen multiple times, on average you still need to do 3 million trials. Sorry to burst your bubble.

@KartonRealista2

4 жыл бұрын

@@danielyuan9862 Except every single person in this comment section is wrong. If something has a 1/3 000 000 chance of occuring within first 3 milion tries the probability that it occured is ~63,21%. But why? Let's approach the problem by calculating the chance of failure - it's (1-1/m)^n , where 1/m is probability of success for one try and n is the number of attempts (1 is a certain event, and 1-1/m is our chance of failure with each try). So our chance of success is 1 - (1-1/m)^n. In our case, m = n = 3 000 000. For m=n this number gets smaller and smaller, but it very quickly becomes close to its limit. Lim [1- (1-1/x)^x], x->inf =1-1/e, which is why for big numbers the probability is always gonna be (almost) the same.

Other guys have bromances, but Matt and James are quantum brotangled.

@FlyingSavannahs

3 жыл бұрын

You get a 'like' and a reply that says, 'awesome'!

I agree with the other commenters below: the two of them agreed upon a binary sequence beforehand. If the sequence was 0, Matt went opposite his own color and James went the same as his own color, and vice versa if the sequence was 1. But what sequence? James gives us a hint: He says "Random with a capital R." If we convert that to 8-bit ASCII binary we get: 01010010 01100001 01101110 01100100 01101111 01101101 This is only 48 characters though, so they padded the sequence with four zeroes, giving: 0101001001100001011011100110010001101111011011010000 as their sequence. If you double check this with the full footage, it should match up perfectly.

@AngryArmadillo

4 жыл бұрын

Errenium you’ve done it!

@lipamanka

4 жыл бұрын

I checked, and it does! I didn't figure out the binary part, but I did figure out the method with the opposites and same guessing.

@FlorianLinscheid

4 жыл бұрын

Yup that's exactly it.

@MiniDemonic

4 жыл бұрын

Great thinking. Was on the same track of there being an agreed upon sequence but it didn't even occur to me that "Random with a capital R" was the hint for the sequence.

@st0rmforce

4 жыл бұрын

Wait, how does that help them with the trick? If the cards are randomised and their predictions are based on their own cards, then they would eventually both be right at some random point.

now thats a wacky aspect ratio

@robblequoffle8456

4 жыл бұрын

mhm

@22BImpreza

4 жыл бұрын

real men use tallscreen not widescreen

@Adderkleet

4 жыл бұрын

If you spread it over two screens, it works out as still quite small (and the bezels get in the way)... but works better?

@catriona3279

4 жыл бұрын

32:9

@fakedeltatime

4 жыл бұрын

I really like that the content determined the aspect ratio instead of trying to fit both of them or only one of them at a time awkwardly at a standard aspect ratio.

Gotta love the 32:9 aspect ratio

@krejcar25

4 жыл бұрын

Great on my ultrawide screen

@nowster

4 жыл бұрын

Pity it wasn't 22:7.

@CheshireTomcat68

4 жыл бұрын

@@nowster Mine was 21:12 I was in a Rush

@Spiros219

4 жыл бұрын

I want a guy with dual monitors to give me some honey

@c.james1

4 жыл бұрын

@@krejcar25 Ultrawide, as in 21:9 ? I would argue that it looks better on my dual normal 16:9 ratio 1440p IPS monitors, just extended across the two displays (which with FF's picture in picture mode is a doddle to set up).

The opposite of filming vertically.

@ashtonhoward5582

4 жыл бұрын

It's called landscape mode

@tenelitebrains

4 жыл бұрын

Ashton Howard whoosh

@ashtonhoward5582

4 жыл бұрын

@@tenelitebrains no no, it is you who had the joke fly over your head.

@jaydoherty8402

4 жыл бұрын

Anti-vertical

@lydianlights

4 жыл бұрын

There are very few things more satisfying in life than seeing people who say "whoosh" in the comments ironically missing the point. I wish they would just stop trying.

I love how they are least in sync when they are actually talking on the phone.

@AfonsodelCB

4 жыл бұрын

they either want us to think they weren't truly on a voice call, or they weren't truly on a voice call

@twischta

4 жыл бұрын

@@AfonsodelCB Oh they were, you can hear a slight echo from matt at the end of the video.

@lasunncty

4 жыл бұрын

The clap and the transmission of the clap are not simultaneous, so syncing them was not really "correct". They could have done another one with James clapping and averaged them out. Also, the echo at the end means that the second call had a different delay from the first one.

@Huntracony

4 жыл бұрын

@@lasunncty You wouldn't expect them to actually be simultaneous as there is a delay between clap transmission and reception.

@lasunncty

4 жыл бұрын

@@Huntracony Right, that's what I was saying.

I believe if you can prove that you're anti-psychics, you owe the James Randi Educational Foundation $1 million.

@gressorialNanites

4 жыл бұрын

Why is this so low?

@SoulSukkur

4 жыл бұрын

I thought i remember them not doing that anymore

@spacenoodles5570

4 жыл бұрын

@@SoulSukkur you didn't get it

@mike140298

4 жыл бұрын

@@gressorialNanites It's pretty anti-low to me.

@SavageGreywolf

4 жыл бұрын

@@SoulSukkur It's sort of 'effectively over' but they plan to use the Challenge in educational contexts in the future. The JREF changed the particulars of consideration of claims now that Randi himself has retired. They don't accept applications directly from people claiming a paranormal power anymore. Frankly it's sort of understandable. I don't think I'd want to spend my time dealing with conmen and lunatics either.

Technically they're not just NAND psychic, they're XOR psychic.

@drdca8263

4 жыл бұрын

Hm? Is it guaranteed that exactly one of them is right each time? Edit: nvm, it is, yes

@Danilego

4 жыл бұрын

Found the Electrical Engineer! Or maybe a Zach Star viewer :P

@NateROCKS112

4 жыл бұрын

@@Danilego or a computer scientist?

@jamesahibbard

4 жыл бұрын

@@NateROCKS112 I am in IT, but I learnt this from Minecraft Redstone :)

@Theraot

4 жыл бұрын

@@jamesahibbard The anti-success of the education

If those are everyday normal playing cards, you must hang out with a lot of giants.

@xevira

4 жыл бұрын

Or they are really Hobbits... In the case of Matt, a Parker Dwarf.

@Brendan_Keyport-WA7BMK

4 жыл бұрын

They're normal cards, Matt & James are both fun sized.

@olmostgudinaf8100

4 жыл бұрын

In that case they must be using tiny phones. From when small was cool.

@MarioFanGamer659

4 жыл бұрын

It's just a macro projection.

@baguettegott3409

4 жыл бұрын

@@xevira I feel like maths is a fundamentally un-Hobbit-y thing to be into though :D So probably more likely dwarves.

Same hidden information there, so cheeky... One person always guesses the same color as their card and other the opposite, but they keep changing roles. If you mark as 1 when Matt guesses the clor of his own card and 0 when he guesses the opposite you get the sequence 0101001001100001011011100110010001101111011011010000 which is ASCII for "Random" (+ undefined half a byte full of zeros to get to 52 bits). This is the prederermined secret that makes the trick possible.

@benjamincote238

4 жыл бұрын

Well, actually the fact that they alternated roles didn't impact. One could have assumed the "same" role and the other the "opposite" all the way through. The tries are independent. ... but chances were we would have noticed more easily.

@Richard_is_cool

4 жыл бұрын

That's why James said it's Random with a capital R!

@wnh79

4 жыл бұрын

Random with a 'capital R' makes it a name, not a definition. So I don't think it is random- like others said there is an independent formula used which is probably easy to see if viewed again.

@minigolfkid

4 жыл бұрын

sighhhhhhhh.....

@glenmcgillivray4707

3 жыл бұрын

If they reliability make sure one of the two will always be wrong based on the cards he holds, they can rig the game. The guesses are not random. They are planned to fail instead. Use a chart to predict and make sure you stay on the fail segments with reliable guesswork. Well played sirs.

"totally normal playing cards" Me: But we're going to skip over the fact they are 4x the size, are we?

@kimunpark2192

4 жыл бұрын

The cards gained weight during quarantine

@the_luna_lily6234

3 жыл бұрын

na, they are real size, matt and james are just that small

Explained as simply as I can: Matt and James each knows the colour of his own card before making a prediction, so they are both effectively predicting the same thing: whether the two cards are the same colour or different. If one person predicts “the same” and the other “different”, they cannot both be right. Matt and James agreed in advance which one of them was going to predict “the same” for each pair of predictions. The order they agreed is based on the values in binary of the ASCII characters “Random”.

I think "Random" is their public key...

@bondles

4 жыл бұрын

And the ASCII spec is their private key* but shh don’t tell anyone

@bondles

4 жыл бұрын

*technically ASCII for one of them and bitwise NOT(ASCII) for the other

I think they used the binary ascii representation of 'Random' with 4 trailing zeros. In the case of 0 occuring in the string, Matt guesses the opposite colour to his card and James guesses the same colur as his, and when a 1 occurs Matt guesses the same and James guesses opposite. This way one of them will always guess that the cards are the same colour and one will always guess the colours are different. Since these options are mutually exclusive they can ensure at least one of them is always wrong. I haven't checked the whole video but the cards they draw at the start are consistent with "Ra-".

@kirkanos771

4 жыл бұрын

They didnt need to use a sequence. It's just a binary NAND trick. They trick you. No gonna spoil but be aware they make their prediction after having looked at their own card. If you are good enough and pause the video once they both made their prediction, you can guess both colors they are going to reveal.

@MikrySoft

4 жыл бұрын

@@kirkanos771 They don't need the sequence, but having it makes the pattern less noticeable. Without sequence (or with trivial one like swapping every other card) Matt would always "guess" opposite of what he's drawing and James the same (or vice versa), making the trick much easier to see.

@tombackhouse9121

4 жыл бұрын

@@kirkanos771 I know but they mix it up so they're not each employing the same strategy every time. They use the binary ascii "Random" to mix it up and make the pattern less noticeable.

@platinummyrr

4 жыл бұрын

@@tombackhouse9121 Interestingly, if you know that they are doing this, but don't know the sequence, you can *decode* the sequence by looking at who guessed opposite of their card. This then decodes to a 0 or a 1.

@craigroberts7013

4 жыл бұрын

In fact, this strategy ensures that EXACTLY one of them is always wrong (and exactly one is always correct)

Hint: They're never both wrong at the same time, either. One of them is always right, and one of the is always wrong.

@WarcowUshi

3 жыл бұрын

I actually love this effect because it's so simple and guaranteed to work exactly the same every time. And unless you are familiar with the effect it looks really good.

@Ken.-

3 жыл бұрын

Somewhat like one of your thems is correct and the other is wrong.

Since both of them being wrong is impossible with the strategy needed to ensure they're never both right, they're technically "XOR" psychic, not "NAND" psychic.

Forget about the trick, the logistic of this is amazing!

Oh the joy of 32:9 content when you actually have a 32:9 monitor. Thank you ever so much for adding bars top and bottom.

"We have absolutely no idea what the other person as doing" - says Matt Parker in the middle of a video composed of two perfectly audio-synced videos with "conversations" that pass between either side. :)

@gitprophet

4 жыл бұрын

Right? What are the chances?

@titip1995

4 жыл бұрын

I'd wager on timed cues.

@NortheastGamer

4 жыл бұрын

Things like this always upset me because I can't decide if they're just that good at timing and scripting or if they're Skyping at the same time. My brain gets stuck in limbo flipping between the two methods like a robot encountering a logical paradox and continues to fry itself for the whole video. There are just some people who don't handle magic tricks well, and I suppose that's me...

@rossgirven5163

4 жыл бұрын

It's timed cues. James.keeps looking bottom right of camera, reading the cue.

4 жыл бұрын

You can tell it's timing cues and not Skype because at one point James starts interrupting Matt. It seems like Matt spoke a bit too much there but James has no way to notice

I can finally use my 32:9 TV

one person always picks his own color, the other person the opposite of his own color, this way you always have an uneven amount of cards of the same color, which can therefore not match - you could extend this by swapping the roles every turn

@brian_jackson

4 жыл бұрын

That does not explain it.

@orangus01

4 жыл бұрын

@@brian_jackson it does

@MillerIndustriesInc

4 жыл бұрын

@@brian_jackson It does

@RubixB0y

4 жыл бұрын

@@brian_jackson I think you must have misunderstood, why do you think that explanation isn't sufficient?

@inigo8740

4 жыл бұрын

@@brian_jackson yes it does

I'm betting there's a timer (or a clock) that's going on a screen behind the camera. They rehearsed the video first being able to hear/see each other and planned the first part of the video accordingly, taking note of whenever they would virtually pass the mic to the other person. They probably also had the script there, to keep track of their own lines as well as to do little head-nods and whatnot. They then gave themselves maybe 4 seconds each to say their piece before showing the card, and back and forth and back and forth. They either synced the timer before the shot or used a global clock accurate to the second and agreed on all the timings before the shoot. As to how they did the anti-psychic bit: one always guesses their color and the other guesses the opposite of their color. Matt starts choosing the opposite of his color but who guesses what is alternated based upon an agreed upon sequence. If we list out all the possibilities for the first pull we get GOT PREDICTED J: b M: b J: b M: r Matt predicted wrong J: b M: r J: b M: b James predicted wrong J: r M: b J: r M: r James predicted wrong J: r M: r J: r M: b Matt predicted wrong I couldn't figure out the sequence on my own, but a number of fellow commenters found it out (I would give credit but I couldn't find who found it first): the sequence is 0101001001100001011011100110010001101111011011010000, aka "Random" in ascii padded with 4 zeroes. James did give a bit of a cheeky hint when he said "that's Random with a capital R". In this case, zero means Matt predicts opposite his own card, and one means James predicts opposite his own card.

@ShadowlessDeath47

3 жыл бұрын

I knew it was same/different but I didn't even realize that they were swapping, somehow! Super clever to have the "Random" hint. Love it.

"Perfectly normal, everyday playing cards" Yes Matt, I play with cards as big as my head daily, thank you for noticing!

So the cards were random but the color choices were not.

@movax20h

4 жыл бұрын

Color choices were dependent on their card, previous color prediction, and pre-agreeded sequence of bits. The only extra agreement to make is the first card, but it is easy to arrange and bootstrap by making Matt always predicting opposite of his card, and James predicting same as his card. Then rest is just simple algorithm to make it less obvious (xoring with pre-agreeded key).

@icew0lf98

4 жыл бұрын

why does the previous color prediction matter? I read the top comment which said that for their agreed sequence, for 0 one says his color, other says opposite of his color, for 1 one says opposite, other says same, and if I am not mistaking, this means they can't both be correct, and I don't see how this takes in account the previous prediction

@loreleihillard5078

4 жыл бұрын

@@icew0lf98 because they swap who is person A and B at a seemingly random rate, although some people have suspected that they used the ASCII code for "Random" to determine who plays which role, which is not only dependent on the previous guess, but all of the previous guesses

I'm just wondering how they timed themselves, maybe had a timer, definitely had a script for the non-random bits

@BigDBrian

4 жыл бұрын

a script with a running timer and timestamps should do the trick.

@scoutskylar

4 жыл бұрын

Maybe a teleprompter

@Rugg-qk4pl

4 жыл бұрын

probably teleprompter software started at the same time and speed

@youchoosealex

4 жыл бұрын

or they just didn't hang up the phone at the beginning...

@danieljensen2626

4 жыл бұрын

I feel like James froze occasionally, but I could be wrong.

The amount of time you gave to figure it out was perfect. Managed to figure out and confirm my hypothesis (at least the most important bit, I didn't figure out the sequence) just before you sped up.

I deeply appreciate your thought process behind deciding to upload in this aspect ratio

@WMTeWu

4 жыл бұрын

Savings due to not having to store/send black pixels are minute. But it's not the savings that are important here, it's the message: Don't be lazy, think before doing. They are not telling you that - they are doing something better - they are setting an example.

What I'm curious about is how they lined up their speech to not be speaking over one another.

@benjy6306

4 жыл бұрын

5:54, its well done but not perfect

@jeremylakeman

4 жыл бұрын

Timed teleprompter.... probably. Could just be power-point slides.

@faphanachet1430

4 жыл бұрын

You can kind of see really subtle edits for example 1:35 there is a barely noticeable change in frame.

@That_One_Kobold

4 жыл бұрын

They had scripts

@adrianflo6481

4 жыл бұрын

Sometimes they did speak over each other. Matt has done loads of this kind of videos. Guessing a timer, a script and practice.

The true art of a magic trick is taking a tricky mechanism and framing it in an interesting story. Well done!

"perfectly normal playing cards" *holds up a deck of cards 3 times the normal size*

Technically, and after confirming from the footage on the second channel, exactly one of you guessed correctly each time making the chance of that happening randomly is 0.5 instead of 0.75, and the overall chance is 1 in 2^52 (~4.5 Quadrillion). I think you should call yourself "XOR psychic". Nice message by the way, indeed 52616E646F6D is Random!

I'm just impressed by the synchronisation and timing in the video.

my guess on what they're doing: It looks like exactly Matt OR James is right each time, but never both. If A guesses B has the same color as A B guesses A has the opposite color as B no matter what cards they have, one will be right and the other will be wrong. It's more of an XOR psychic than a NAND psychic. I don't know exactly what they did to figure out who is A or B, but it should simple to memorize who's turn it is.

@chrisruppel8183

4 жыл бұрын

THIS EXACTLY!

@YOM2_UB

4 жыл бұрын

Either they both have the same color card, in which case A is right and B is wrong, or they each have a different color of card, in which case B is right and A is wrong. Clever. They presumably have to be running some sort of time-based script to coordinate this sort of video without talking over each other, so who guesses which way is probably in that.

@Mrjcraft00

4 жыл бұрын

YOM2 a lot of people are already theorizing about this, it seems like they used the binary string for the word “Random”, having one person choose same and the other opposite on 1s and switching on 0s.

@chairwood

4 жыл бұрын

thx numberphile hat game video

they are actually in the same room with very clever set dressing to make it look like a split screen

The touch of Matt saying James has a red card and James starts by saying "where as I'm guessing James has a red card" is really good

Thank you for finally making use of my super widescreen monitor!

They just have to agree on a random binary sequence of length 52 before - when i-th element is 0 Matt says the opposite card number to his and James says the same and if it is 1 Matt says the same and James the opposite. They can't both be correct - if the two cards have opposite colors the one who guessed the same as his, would be wrong, and if they have the same color the one who guessed they are of opposite color would be mistaken. And both sequences are purely random as they are coming from essentially xor-ing two random sequences (even if the order of the cards would not be random, their answers still would be as long as their binary sequence is entirely random). Just notice how they are never BOTH wrong.

@rmsgrey

4 жыл бұрын

Yeah, never both being wrong is the giveaway here - they're each right roughly half the time, but perfectly correlated with each other.

@guillaumeschneider8759

4 жыл бұрын

@@rmsgrey I think what he meant was in accordance to their own card, each turn either Matt or james' guess is the opposite color of their card

@graypatrick99

4 жыл бұрын

Based on the way they were saying it, I'll bet they're using the WORD "Random" (with a capital 'R') as their key, rather than a random sequence. But I cba to do the maths to confirm.

@rabonssons

4 жыл бұрын

By the end of the video, I could predict their prediction haha (noted that I had to pause and check the previous result to figure it out what they were doing)

@apoorvaaditya9491

4 жыл бұрын

With their emphasis on the word random i think the binary sequence is probably the binary translation of the word random. But that comes out to be 48 characters but they loop back to the start for the last 4

I thought I figured it out before they finished, but I was missing the binary code part of it. Nicely done! It reminds me of a similar game where both players have half a shuffled deck of playing cards, and they deal one card per round. For each round the colors do not match, they are discarded while matching red cards go to the red pile, and matching black cards go to the black pile. You can trick people with bets, mystical powers, or whatever, saying that your prediction will be that the two piles are equal in number, which to most people seems extraordinary. In the end, the number of cards in the red pile will always be equal to the number of cards in the black pile.

I love how you're both using your own versions of the utility problem mug

well done, you made us try and solve a puzzle that was not even mentioned in the video, but insetead cleverly hidden :D

Okay, so as half the comments pointed out, one of them is always guessing that their cards will be the same, and one of them is always guessing that their cards will be the opposite. Slightly fewer people have pointed out that the same person isn’t saying opposite every time, they switch it up on a pattern. Even fewer than that have pointed out that the pattern is in some way related to the word “random,” they make a point to emphasize it to give us a hint. And barely any comments are pointing out that the exact pattern they’re using is “010100100110000101101110011001000110111101101101,” where 0 represents Matt saying the cards will be opposite, and 1 represents James saying the cards will be opposite. And yes, that is the word “random” spelled in binary. The only question now, is do those nerds just know how to spell in binary, did they memorize it for this trick, or are they using a cheat sheet?

@NortheastGamer

4 жыл бұрын

I have seen numberphile mathematicians write down really long numbers from memory in videos before. Sure, they probably submit the number to memory prior to filming, but I think that memorizing numbers is just a skill that any math nerd probably practices for fun at some point in their life, and they're all probably really good at it.

@MoD366

4 жыл бұрын

At least Matt has proven time and time again that he can read binary, so I'd say he can convert text back to binary just as easily (seeing as letters are only 5 binary digits with an overhead that specifies upper and lower case). You basically only have to know the ordinal of the letter and be able to convert that to binary. Both can be learned with not too much effort if you are interested in it.

@benjaminv3748

4 жыл бұрын

I mean, it seems to me that they use the timer on their phone to sync up (which "calls" James in the end, and they mess up a bit in the beginning/end -- so they actually never spoke (!), so that putting on the timer wouldn't look suspicious maybe?). That, or just their watches (e.g. every 5 seconds...). So sure, they could memorize the string and possibly timestamps, or simply put it on their phones or behind the camera. Why not? Possibly to flex. But I mean, conversation is probably written somewhere too? Clever nonetheless!

@cigmorfil4101

4 жыл бұрын

Only in ASCII...if they wanted to hide it better they could have used 6-bit, EBCDIC, Baudot, Morse, etc instead, either repeating where necessary or using a longer key phrase, but that would have been harder for people to work out.

I am genuinely glad that the aspect ratio is actually 32:9. You'd be surprised how often ultrawide videos are just 16:9 video with black bars.

I remember the video that James did before. And by the second cards they each flipped, I realized they were alternating the strategy. The following few hands I was able to predict the color of both cards before they were revealed.

@Angi_Mathochist

4 жыл бұрын

This time they did not simply alternate, though.

I’m just impressed they managed to sync their talking up.

Before I even fully watch this, this looks like the trick I’ve seen before with the “sorcerers” that if they both guess the color of card correctly, they are executed, but if both never guess correctly or one does and the other doesn’t, they’re free (or the test just keeps going). I also feel like at least one of y’all was involved in that video, if not having published it yourself. Been a while and can’t look it up on mobile once I start typing…

@nickschmucker8836

4 жыл бұрын

I think the video you're talking about was from scam school

@Gakulon

4 жыл бұрын

@@nickschmucker8836 Brian Brushwood even mentioned singingbanana during the video, and has been friends with James Grime for a good chunk of time.

@Norgodir

4 жыл бұрын

James made this video on the trick in March 2008! kzread.info/dash/bejne/dZOsl62mgNS8YtY.html

Hahaha - This was so funny, perfectly synchronized videos, that was the real psychic power!!!

Hey, I'm named in a James Grime video description! Awesome! And Matt was also there, I guess, so that's good :D

The first thing I thought of when I read the title was the psychic dog Matt found

Simple explanation. One person always chooses his color, the other always chooses the opposite. If they have the same color, then they will have opposite predictions. If they have opposite colors, then they'll have identical predictions. Either way, they can't both be right. To make it harder to follow, they alternate which one picked their own color and which picked the opposite.

@RFC3514

4 жыл бұрын

That is indeed a simple explanation, except you can see in the video that neither of them is "always choosing his colour". So try a (very slightly) _less simple_ explanation. ;)

@Sam_on_YouTube

4 жыл бұрын

@@RFC3514 Read my 2nd paragraph. Started with the simpler method, then explained how they obfuscated it.

Look this was weird enough when you did this to your own pre recorded video in front of your pre recorded video. This is killing me. I love it.

So basically, they're quantum entangled, if you measure the state of one mathematician it'll directly affect the state of the other mathematician. Cool!

you get +100000 points for uploading in this super wide ratio. my ultrawide monitor loves it

Neat magic trick, although a fair bit easy to figure out with a bit of thought, but it's as simple as one of them saying the same color as they have on top, and the opposite of what they have on top, with a predetermined pattern on who goes same and who goes opposite so as to not appear too obvious. Crucially, this method leads to only two scenarios. The two of them draw the same color, or the two of them draw opposite colors. If they draw the same, the one guessing opposite will be wrong, and if they draw opposite, the one guessing same will be wrong.

One person guesses that the other person has the same color as his card and the other guesses that it's the opposite; this always guarantees that one will be wrong. For added confusion, they alternated which one guessed the same and which one guessed the opposite according to a predetermined sequence (credit to other commenters for discovering the sequence).

I'm so glad I bought that 16:1 wide screen!

One of them will always chose their own card's colour and the other the opposite of their own colour the person guessing their own colour isn't always the same but there's always only 1 of them (Matt for the first 2 then James then Matt again, this order can be arranged ahead of recording). When drawing two cards there's two outcomes, either their the same colour or their not. If both cards are the same colour, the person who guessed their card is right and the other wrong, if the two cards are different colours the one who guessed the opposite of their card was right and the other wrong. Really liked how you changed who was guessing their colour depending on which round you were on, made it so much more satisfying when I finally clocked on.

That double torus mug though... That's amazing.

Matt: same color as mine ! James: different color than mine ! If Matt is right, then both cards have the same color. Then James is wrong. If James is right, then both cards have different colors. Then Matt is wrong. Then switch roles to hide the trick. Nice trick ! I first tried to solve it using probabilities, then laughed at myself.

@Silentsouls

4 жыл бұрын

Awesome, how good i become at predicting the colors they both have, when they anti predicted it :) thanks to this trick

@stevemarethyu3003

4 жыл бұрын

Thanks for clear and straightforward explanation!

This gag is good enough for Fool Us! Well done!

Cool collab with my fave mathematician 🥰 I figured out the code is RANDOM and one predicts “same” while the other predicts “opposite”. But I’m actually still trying to figure out how you guys coordinated the pacing for your dialogue 😄

the advertisement placement was at around the 7 minute mark was also well placed

Forget about the sequence, I wanna know how they filmed it so perfectly with no jump cuts

Great stuffs guys, thanks a ton

watching james succumb to despair while trying to slow down to the talking speed matt has set is kind of entertaining

You know a video is good when it breaks theatre mode

James said the colour of his card and Matt said the opposite colour of his card. Guaranteed to work every time.

@Sahuagin

3 жыл бұрын

almost, except that who voted which way depended on a pre-determined binary sequence

I'm most impressed that they timed saying their lines completely independently!

I love this view of talking on a phone. "Natural" speech is actually a lot of speaking over one another.

I'll say, as an ultrawide (21:9) monitor user, i'm glad you uploaded this with the proper aspect ratio instead of boxed in to a stupid 16:9 stream. Maths people appreciate the struggle of window boxing clearly.

First video I found that fits my double wide screen. Nice!

I figured it out! All odd attempts (1,3,5..) Matt predicts opposite color of his card, and James predicts same color as his card. All even attempts, Matt predicts same color as his card, and James predicts opposite color of his card! This guarantees that at least one of the predictions is different than another card, because to have a realistic chance, you need both predicting same or different color at the same time! It was pre arranged!

I think the bigger question is "How does James stir his coffee?"

Nice one There is a similar problem where 2 people toss coins in separate rooms and have to guess what the other one got. One of them should always be right.

5:24 I immediately understood that one has to say the same color as their card, and the other has to say a different color, but them swapping up who said the same color and who said a different color is a nice touch.

3:06 For the psychic case (both correct), there's a strategy that gives you a better than 1-in-4 chance each round.

Spoiler alert for how this trick works. You’ll notice while watching the video, both Matt and James check the card they have before guessing. This is because their prediction uses the color of the card they are about to draw. Sometimes it will be the same color, other times it will be the opposite color. The biggest thing to note however, is that matt and James do not simultaneously pick their same color at the same time. One of them will always pick the same color, and the other will pick the opposite color. Before recording, they agreed on a sequence that they would either pick their own color or the opposite for all 52 cards. Because of this, mathematically, none of them will be correct at the same time! Enjoy your day every one!

@Loekamber

4 жыл бұрын

logically*, if anything, this is boolean logic, not math.

@schishwah3754

4 жыл бұрын

It allllll adds up

@dwightfry99

4 жыл бұрын

Can you explain the maths? There probably was a sequence that influenced their rules. It's a good explanation of how they hid the trick. Mathematically, it only takes one iteration to understand why they are so confident with their predictions. _________________________________________ Matt has BLACK; James has RED. Matt predicts BLACK; James predicts BLACK. (Matt is the same; James is the opposite) Matt predicts RED; James predicts RED (Matt is the opposite; James is the same) Matt predicts BLACK, James predicts RED (Matt is the same; James is the same) Matt predicts RED; James precicts BLACK (Matt is the opposite, James is the opposite) ________________________________________ Matt has BLACK; James has BLACK Matt predicts BLACK; James predicts RED. Matt predicts RED; James predicts BLACK Matt predicts BLACK; James predicts BLACK Matt predicts RED; James predicts RED ______________________________________ I believe this chart is enough to prove that the only way both can have correct predictions is if they both follow the same rule. It covered the situation in which they both had the same color, and it covered the situation in which they have opposite colors. The only time both predictions were correct was when they both followed the same rules. WHY?!?!?!?!?!?

@schishwah3754

4 жыл бұрын

dwightfry99 the simplest way to view it is that the two either have the same color or opposite colors. Assuming both parties are following the rules discussed before the trick then the result is rather simple. If they have the same color, only the person guessing their own color will be correct. If they have opposite colors, only the person guessing the opposite color will be correct. This covers all possible cases.

@dwightfry99

4 жыл бұрын

@@schishwah3754 Took a moment but ya. I get it. It's difficult to grasp none the less.

Already read through the comments, and know the trick. But am still waiting for the follow up explanatory video ;)

Random with a capital "R" - for each round, they must choose an odd number or Reds from (the two hole cards + the two given choices) - a shared one-time pad helps ensure the result. In each trial, one chooses the same colour while the other chooses the opposite.

I was hoping with the call at the end one of them would be like "so did you start recording yet?"

I thought it said anti-physics

@0xva

4 жыл бұрын

same

I love that trick. The changeups between red and black were very clever but it's obviously a trick that involves changing your choice based on the card you're looking at to force the other guess to be incorrect every time it would normally have been correct on both sides.

If you notice both of them look at their card before making their prediction. One of their predictions is opposite to their card and one is the same. The person who predicts the opposite switches after every card. For odd numbered predictions, Matt switches, on even numbered predictions, James switches. As an example, say Matt switches and James sticks, this method will also work the other way round. Since: If Matt has red and James has red, the prediction will be black for Matt and red for James. If Matt has red and James has black, the prediction will be black for Matt and red for James. If Matt has black and James has red, the prediction will be red for Matt and red for James If Matt has black and James has black, the prediction will be red for Matt and red for James.

Guys 'n Gals, I won't put as much effort into it as some of you did but it definitely must have something to do with them pre-looking at their own card and I also don't buy the "simultaneously". Hope this could help ...

This is the only video I've ever watched on my ultrawide screen where the black bars were on the top and bottom instead of the sides.

This is such a cool logic problem, if I were a teacher I’d show this to my students

I assume the trick has to do with the color of the card you see judging by how much they looked at their next card. Unless they have quantum entangled decks?

you looked like babies playing with parents’ cards when you two were shuffling those big decks

This reminded me of code Geass. Was very awesome, dunno how it was done but was so cool

As a veteran of Singingbananna I know youve made this video before!

That's made so good. Love u2

They had a method for choosing which colour to pick based off of the colour they had, they alternated between picking the colour they had and picking the opposite colour. Since they were out of sync with which method they used, only one of them would be correct. If the suits matched, the one who said they didnt would be wrong and the one saying they were the same would be wrong if they had different colours. I'm pretty sure RANDOM is an acronym that describes this methodology, but I'm not sure what it stands for.

This is great! Both of them specifically say that the sequence of cards is RANDOM, but since they're anti-psychic, it's impossible that they're both correct, meaning they're both lying! The sequence isn't random...

@Jkirek_

4 жыл бұрын

The sequence is random, but they announce to eachother (via code) which one they have -since one person always looks before they announce it- so one person is always wrong

@victorvitez7328

4 жыл бұрын

how they do it is pretty fun, matt always predicts the opposite of his card and james always does the same colour if they have the same colour cards, then matt is wrong, if they have differnt colours, james is wrong

@rmsgrey

4 жыл бұрын

@@Jkirek_ That seems like more work than my guess - where they have a pre-shared binary sequence, and then can work entirely independently with a randomly shuffled deck.

@Connoratess

4 жыл бұрын

Victor Vitez 4:48 your theory doesn’t hold out... it’s correct most of the time though

@michaelboehme7964

4 жыл бұрын

@@victorvitez7328 If you watch even just a few of them at the beginning you'll see that your color selection method is wrong

"Hallo Matt Pahhhkuh, it's-" "Oh my, is this the internet's James Grimes?!"

I can't predict the trick that they used ( if they had used one) but I noticed one thing. Both of them were giving a look at their last card on the deck before giving the call.

I love James' tourus mug

@itisALWAYSR.A.

4 жыл бұрын

Mug? All I saw was a donut

It's cool that it's the comment section the one explaining how it all works. Thanks comment section! ^_^

The beginnre version of the trick is a bit different, but unfortunately way less impressing: 'One of us will say "our cards have the same colour", and one will say "our cards have different colours" - but by our anti-psychic abilities we will never make the same prediction'