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Author Topic:   How is that even possible?
ProtoTypical
Member
Posts: 1792
From: Ontario Canada
Joined: 08-04-2010


Message 1 of 15 (751593)
03-04-2015 10:08 AM


My son showed me this video and asked if it was even possible. I didn't have a good answer for him.

This guy looks at 50 Rubik's cubes for about 37 minutes and then puts on a blindfold and solves them all from memory in about 21 minutes.

What do you think? Is this bs or does it show something truly remarkable about the capacity of the human brain?


Replies to this message:
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subbie
Member (Idle past 64 days)
Posts: 3509
Joined: 02-26-2006


Message 2 of 15 (751595)
03-04-2015 10:19 AM
Reply to: Message 1 by ProtoTypical
03-04-2015 10:08 AM


I can imagine a few different ways that this could be faked, none of which would be apparent in the video.

Ridicule is the only weapon which can be used against unintelligible propositions. -- Thomas Jefferson

We see monsters where science shows us windmills. -- Phat

It has always struck me as odd that fundies devote so much time and effort into trying to find a naturalistic explanation for their mythical flood, while looking for magical explanations for things that actually happened. -- Dr. Adequate

Howling about evidence is a conversation stopper, and it never stops to think if the claim could possibly be true -- foreveryoung


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1.61803
Member
Posts: 2926
From: Lone Star State USA
Joined: 02-19-2004
Member Rating: 5.2


Message 3 of 15 (751597)
03-04-2015 10:22 AM
Reply to: Message 1 by ProtoTypical
03-04-2015 10:08 AM


Heh, I could never solve the thing with my eyes open.

"You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs

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Percy
Member
Posts: 18992
From: New Hampshire
Joined: 12-23-2000
Member Rating: 3.4


Message 4 of 15 (751600)
03-04-2015 10:37 AM
Reply to: Message 1 by ProtoTypical
03-04-2015 10:08 AM


He could be legit. I've seen amazing simultaneous chess exhibitions, was one of the losing boards in one of them, and I've read stories of simultaneous blindfold chess exhibitions, so I believe what he did is possible.

On the other hand, according to the Amazing Randi, the most common cheat when blindfolds are involved is a tiny vision avenue. With people attempting to win his challenge it happened over and over and over again.

--Percy


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New Cat's Eye
Inactive Member


(2)
Message 5 of 15 (751601)
03-04-2015 10:43 AM
Reply to: Message 3 by 1.61803
03-04-2015 10:22 AM


Heh, I could never solve the thing with my eyes open.

There's a technique. I had someone explain it to me in college, and it opened my eyes (heh) to a whole new way of approaching the problem.

Before I was focusing on the surfaces, and just moving the colored squares around on them trying to get them closer together.

But if you approach it as a three-dimensional problem, and realize that the faces on the corner blocks have to guide you to what color each side must be, then you can start to realize that there's a process involved in getting the right colored faces to the sides that they must end up on for the whole side to be the same color.

You always start with the corners...

For example:

In this one, the top corner closest to the screen shows that the top side must be white, while the right side (facing us) must be green and the left side orange.

Going to the very bottom closest corner, you're going to have to find the corner piece that fits where the right face is green and the left face is orange. There's only one piece that will fit there in that spot and make it work, so you have to find that one piece that will work and then figure out how to get it moved in that only position that will solve the puzzle.

You keep going around the corners until you get all those in place and the you can start moving to the other faces.


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1.61803
Member
Posts: 2926
From: Lone Star State USA
Joined: 02-19-2004
Member Rating: 5.2


Message 6 of 15 (751606)
03-04-2015 11:52 AM
Reply to: Message 5 by New Cat's Eye
03-04-2015 10:43 AM


Arrrrgghhh! ok. Im off to Toys r us after work today.

Thanks Cat!


"You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs

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New Cat's Eye
Inactive Member


Message 7 of 15 (751610)
03-04-2015 11:58 AM
Reply to: Message 6 by 1.61803
03-04-2015 11:52 AM


Arrrrgghhh! ok. Im off to Toys r us after work today.
Thanks Cat!

You're welcome.... but you're still not gonna solve it

Just because you know how doesn't mean you can. Even with the technique it is still incredibly difficult.

If you really want to be able to solve it, look up hints online on how to get a piece from one particular place to another. There are particular movements you need to employ to move a piece to its desired location.

It'll be like: To go from here to there, spin this side twice, then this other top part once, then go back to the other side and spin it backwards three times, and then move the bottom part over one, and viola, the piece will be where you wanted it to be.


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subbie
Member (Idle past 64 days)
Posts: 3509
Joined: 02-26-2006


Message 8 of 15 (751615)
03-04-2015 12:27 PM
Reply to: Message 5 by New Cat's Eye
03-04-2015 10:43 AM


That's odd. I always thought the key to it was the center pieces, since they never move relative to one another.

Ridicule is the only weapon which can be used against unintelligible propositions. -- Thomas Jefferson

We see monsters where science shows us windmills. -- Phat

It has always struck me as odd that fundies devote so much time and effort into trying to find a naturalistic explanation for their mythical flood, while looking for magical explanations for things that actually happened. -- Dr. Adequate

Howling about evidence is a conversation stopper, and it never stops to think if the claim could possibly be true -- foreveryoung


This message is a reply to:
 Message 5 by New Cat's Eye, posted 03-04-2015 10:43 AM New Cat's Eye has responded

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New Cat's Eye
Inactive Member


Message 9 of 15 (751618)
03-04-2015 12:54 PM
Reply to: Message 8 by subbie
03-04-2015 12:27 PM


That's odd. I always thought the key to it was the center pieces, since they never move relative to one another.

You know what, you're right. I forgot that step.

The center pieces determine which face must be which color. THEN you go to the corners and match up those sides with what color that face is going to be.


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nwr
Member
Posts: 5587
From: Geneva, Illinois
Joined: 08-08-2005


Message 10 of 15 (751629)
03-04-2015 1:29 PM
Reply to: Message 1 by ProtoTypical
03-04-2015 10:08 AM


What do you think? Is this bs or does it show something truly remarkable about the capacity of the human brain?

I can't do that, but it seems possible if you want to go to the trouble.

There's nothing really remarkable about it. Studying a Rubik's Cube, you can reduce the solution to a small number of steps. Each of those steps might take 10 moves or so. But you only have to remember the small number of steps. By the time you have mastered the cube, you already have the 10-move sequences at you disposal and could do those sequences blindfolded without any difficulty.


Fundamentalism - the anti-American, anti-Christian branch of American Christianity

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frako
Member
Posts: 2815
From: slovenija
Joined: 09-04-2010


(1)
Message 11 of 15 (751722)
03-05-2015 5:58 AM
Reply to: Message 1 by ProtoTypical
03-04-2015 10:08 AM


I just know how i would fake this roll back the film, and start with the assembled cubes and just mess them up then roll it backwards.

Christianity, One woman's lie about an affair that got seriously out of hand

What are the Christians gonna do to me ..... Forgive me, good luck with that.


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ProtoTypical
Member
Posts: 1792
From: Ontario Canada
Joined: 08-04-2010


Message 12 of 15 (751725)
03-05-2015 7:16 AM
Reply to: Message 4 by Percy
03-04-2015 10:37 AM


I've seen amazing simultaneous chess exhibitions,

Yes like Magnus Carlsen. He plays 10 blind games simultaneously and wins them all. http://youtu.be/cTeDkyQUbyY

His brain must work differently than mine.

the most common cheat when blindfolds are involved is a tiny vision avenue.

That was my first suspicion. I guess this guy holds the world record for doing one RC blind in 21 sec. Looks more controlled in this video.
http://youtu.be/0RfJbcydNJ0

I guess that not every unbelievable thing that you might see is actually unbelievable.


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ProtoTypical
Member
Posts: 1792
From: Ontario Canada
Joined: 08-04-2010


Message 13 of 15 (751726)
03-05-2015 7:18 AM
Reply to: Message 10 by nwr
03-04-2015 1:29 PM


There's nothing really remarkable about it.

Yeah I don't know about that. I suspect that it is not as difficult as it looks but I wouldn't agree that it is not remarkable.


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Jon
Inactive Member


Message 14 of 15 (751730)
03-05-2015 9:05 AM
Reply to: Message 5 by New Cat's Eye
03-04-2015 10:43 AM


Subbie's right. The key is the center.

The image shows that the top color must be yellow.

There are a few techniques for solving the cube, but since the center cross is the stationary piece of the cube, and the faces move around it, it is that center cross, and the squares connected to it, that determine where each color will be: the same cube will always have the same colors in the same positions relative to one another when solved.

The method I use involves solving a single face and then solving 'down' the cube until you get to solving the face opposite the starting one. But that is a slower method, and I've never gone faster than about one minute.

Google it and you will see how it's done There are also tips on doing the faster methods; they take more thought, so I've never bothered with them.


Love your enemies!

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Straggler
Member
Posts: 10285
From: London England
Joined: 09-30-2006


Message 15 of 15 (751820)
03-06-2015 8:32 AM
Reply to: Message 5 by New Cat's Eye
03-04-2015 10:43 AM


Algorithm
The rubiks cube can be solved by applying a handful of algorithms repeatedly.

http://uk.rubiks.com/...how-to-solve-the-rubiks-cube-stage-2

The algorithms themselves are second nature to anyone who solves cubes regularly.

Whilst I am not saying that what this guy does is not impressive I do think that with a good enough memory it would be possible for a rubiks expert to view a bunch of cubes and then just decide which algorithms to apply to each one before donning the blindfold.

Then all he has to remember is a long sequence of algorithms, the individual steps of each algorithm having already been well learned, to solve all the cubes and let his well practised hands do the rest.

Not easy. But not impossible for those with that sort of mind.


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