Please explain this supposed psychic demonstration

The current mailbag article reminded me of something I encountered years ago. I’ve thought about it off and on ever since, and it occurs to me I could throw it to the 'Dope and see if someone figures it out.

Years ago, back in my college days, I took a very interesting class called “Cosmology.” No, it wasn’t related to astronomy; the teacher was an old ex-hippie, and I guess he figured by using the root “cosmic” in its most basic sense, he could teach a class that encompassed whatever he wanted to talk about. We studied some fascinating stuff, such as the mathematical bases of various ancient constructions, as well as the limitations of human perception with respect to optical illusions and the like. We also got into some rather woo-woo areas, which made me roll my eyes, but the factual stuff we learned (how to do math in Mayan, astronomical alignments of British-isle megaliths, etc.) outweighed the New Age B.S. and made the class an overall positive experience.

One of the woo-woo bits was a demonstration of supposed psychic abilities. (It followed from the “limits of human perception” thing.) It was an impressive display, and I’ve never come up with a satisfactory explanation of how it was done. Note that by “impressive” I mean in terms of it being a well-executed trick of some sort, and by “no satisfactory explanation” I’m not suggesting any kind of supernatural basis. I just haven’t figured out the mechanics of the trick yet.

Here’s how it went.

A woman came into the classroom and told how she could “see” without seeing. According to her story, she and her sister, ever since they were kids, never bothered to turn on the lights at home, because they could “see” just fine even in pitch black. So far, just an unfounded assertion.

Then she proceeds to demonstrate her “seeing” abilities. The instructor gets from his desk a pack of playing cards, the box still wrapped in the original plastic. (Yeah, I know. Playing cards: first clue this is a trick.) A square table is moved from the corner of the classroom to a cleared space in the middle. The woman sits at the table. A blindfold is fashioned from a square of heavy burlap, folded over three times. She tips her head back, and cotton balls are placed on her closed eyes. The blindfold is then draped over her eyes, tightened, and securely fastened in back. I know some of the tricks magicians do with blindfolds (years of being a Penn & Teller fan), and I’m reasonably satisfied she couldn’t see.

While two students are helping with the blindfold, another student has picked up the box of cards (the woman never touched it). The student unwraps the plastic, takes the cards out, and shuffles them. When the “psychic” is done with the blindfold, seated and ready, the student puts the deck on the table in front of her.

The “psychic” reaches out and picks it up (interestingly, without having to feel around for it). Then she begins turning cards from the top, and quickly and efficiently sorts them into red and black piles. She also sets the two jokers aside.

The most interesting performance detail was as follows: Midway through the sorting, the two piles of red and black were getting a little messy. She stopped, put the as-yet-unsorted stack down in front of her, and leaned to one side to shuff the pile together into a neat stack. The instructor stepped in and said, “Let me.” She waited while he gathered up the piles, making them into stacks. He then put the two stacks out toward the corners of the table, out of the way. She then resumed sorting. And when she was done, she took the second-half piles, shuffed them up, leaned forward, and put them directly on the previously moved stacks, which she hadn’t touched in any way and supposedly couldn’t see.

I’m extremely clear on all of these details because I was running the video camera. No, we didn’t just tape this demonstration; we had always videotaped the class, and put the tape in the library, for the benefit of students who weren’t there that day. The fact that this demonstration was taped was a happy accident. Anyway, I was impressed enough by the demonstration (again, as a performance) that I went back and looked at the tape a couple of times, verifying details, and seeking clues.

Facts: The table had been in class from the beginning, weeks before, and had been used by us. The playing cards were a cheap off-market brand with a muddy blue-green flower pattern on the back, rather than Hoyle or Bicycle. At no time did the “psychic” touch the blindfold; neither did she handle the cards until she was blindfolded and seated, and the freshly unwrapped and shuffled cards were handed to her. Nobody was touching the “psychic” during the demonstration (e.g., an assistant watching from behind with hand on shoulder, giving physical cues), or even standing within two or three feet, except for when the instructor stepped in to neaten the piles. All of this was confirmed on the videotape.

Observations: The instructor had, in previous weeks, demonstrated interest and credulity regarding supposedly inexplicable phenomena, and seemed legitimately impressed by the “psychic”; I don’t believe he was in collusion with her. The fact that the demonstration was conducted using playing cards, though, is a big red flag. Also, I can’t remember who provided the blindfold materials, but they were inspected to the students’ satisfaction and deemed to be real burlap and ordinary cotton balls, and the blindfold was assembled and applied by students.

Theories: The first place to focus is, of course, the blindfold. If the “psychic” could really see, then all bets are off. Again, though, this was a substantial blindfold, with cotton balls over the eyeballs, held tightly by heavy burlap with no gap at the bottom (the videotape shows students checking the bottom edge, where it rested on her cheeks, by tugging lightly), and secured with safety pins in the back. Given all of this, I’m satisfied she could not actually see.

The next area of suspicion is the cards. The shrinkwrap could be a performance detail; it’s not hard to have something re-wrapped. Another performance detail comes from the deck having been placed in the instructor’s desk; it seems more legitimate than if she produces the pack herself, even if she just gave the pack to the instructor ahead of time and he temporarily stashed it in his desk. Also, the off-market nature of the cards leads me to believe they may have been purchased in a magic shop, and that the two colors are somehow textured differently, allowing her to separate them by feel. If it’s subtle, it’s possible the student who did the shuffling wouldn’t have noticed. I didn’t want to be an asshole and ask to physically inspect the cards to see if I could distinguish any textural difference. (The tape doesn’t show what happened to the cards afterward; my guess is that she took them with her.) One possible downside to this theory is that she went really fast, and didn’t seem to allow a lot of time to sense a subtle difference in touch, but of course speed and sensitivity can be accomplished with practice.

Collusion also comes to mind. It’s certainly possible to set up some kind of signal from an observing confederate, such as, for example, a slightly noisy inhalation or exhalation while the cards are red, and letting the breath go quiet while the cards are black. It seems risky to do this in close quarters, but then humans aren’t very good at noticing things they normally take for granted. (Ever do the “<clear throat> The South shall rise again” trick at a party? Works like a charm.) Also, there wasn’t anybody extra in class, so the only candidate is the instructor, but as I said he had already demonstrated a lack of critical thinking with regard to other supernatural phenomena and seemed truly impressed by the “psychic” and her “powers.”

My best theory goes back to the cards, and some kind of textural trick. The shrinkwrap and the student shuffling are, I believe, performance details designed to misdirect us from suspecting the cards as the source of trickery, and to make us assume the cards are “fresh from the store” and therefore “safe.” The other effects (in particular, being able to reach directly to an unseen pile of cards) could be achieved simply through extensive practice. I mean, come on: Cards? If she really wanted to convince us she could “see” while blindfolded, she would have played catch with someone, or driven a car, or something. Or if she insisted on using cards, she would have asked us to tell her how we wanted her to separate them (e.g., odds, evens, and face cards), since she was supposed to “see” them and everything.

So: Like I said at the beginning, this demonstration was impressive at the time as a performance piece. In retrospect, obviously, the opportunities for trickery are numerous. What I’m looking for is any 'Doper who has had experience with fake psychics (i.e., misrepresented magic), and who can attest to the possible methodology of this demonstration. Anyone able to confirm first-hand (and provide details about) the textured cards? Anyone know how the blindfold described above could be faked? Anyone seen this particular demonstration? Any other theories? (If you think “maybe she really was psychic” is a theory, you’re on the wrong message board, dude.)

I’m not a fan of revealing magicians’ secrets. However, when a magician uses those techniques to falsely represent supernatural powers (Uri Geller, anyone?), I think those techniques do deserve airing. Mostly, I just want to know if my own personal theories about how the demonstration was accomplished hold any water, or if there’s a better (or easier) way to achieve the same effect.

Woman comes in. Says she can “see without seeing”, i.e. see in the dark.

Instructor gets out deck of cards still in plastic. Woman does not touch cards yet.

The table, that lives in the classroom, is moved. Woman sits at table. She is blindfolded. Two students help with this.

A third student picks up deck of cards, unwraps it, shuffles deck, and lays cards on the table in front of woman. [hands her a stacked deck different from the instructor’s deck]

Woman picks up deck of cards. Begins turning cards from the top, sorts them into red and black piles. [It’s a stacked deck, and she knows ahead of time the sequence of red and black. And she knows where the jokers will appear in the deck–all she has to do is count cards.]

Halfway through the sorting, the piles are getting messy. Instructor tidies up piles, and moves them to the corners of the table. Woman resumes sorting cards, making two new piles in front of her. When she’s finished sorting cards, she takes these two new piles and adds them to the previously moved stacks, which she presumably can’t see. [the table is resident in the classroom–the instructor has had plenty of oppotunity to practice where to put the cards, and she’s had plenty of opportunity to practice putting the new piles down directly on top of them.]

So, that was it? That was your “psychic demonstration”? Geez. :rolleyes: The instructor HAD to be in collusion–otherwise, why would he take it into his head to (a) tidy up the piles and (b) move the piles to the far corners of the table? You say, "he had already demonstrated a lack of critical thinking with regard to other supernatural phenomena and seemed truly impressed by the “psychic” and her “powers.” Maybe it’s just that he thinks magic is really cool, and somebody pulled this stunt on him at a party one time, and he wanted to see if his class would fall for it, too.

The cards don’t have to be textured at all–this is perfectly explainable if you have two people in collusion with her and a stacked deck.

Bear in mind that the reason that con games work so well is because the “mark” doesn’t want to believe he’s being conned. You don’t want to believe your instructor was in collusion with her. :wink:

And see the textbook for Sleight of Hand 101 for how the third student shuffled the instructor’s deck and then managed to hand her a different stacked deck, while your attention was on the two students helping blindfold her.

Geez. He doesn’t even have to hardly do anything–you’re busy watching her sit down and get settled, all he has to do is stick Deck #1 in his pocket and whip out Deck #2.

She doesn’t have to feel around for it because she practiced with him, “here’s where to put the deck, Sparky”.

The alternative theories sound fine, and I certainly considered them, but I have to say, I concluded that the two-people-cooperating idea was less likely. I’m not saying it’s impossible that’s how it was done, I just find it more likely that she engaged in some individually-performed trick (i.e. David Blaine close-up magic), and less likely that she convinced both the instructor and a student to go along with it, and then that student managed to keep the secret from friends and classmates for the rest of the term. Not really college student behavior.

Oh, and re the instructor: When I say he displayed a lack of critical thinking, I’m talking UFOs and past lives kind of stuff, starting from the beginning of class. It seems unlikely to me that the instructor would (1) pretend to believe all of this for weeks and weeks, as setup for a goofy “psychic” trick later on, or (2) be perfectly willing to seriously entertain way-out notions of Atlantis and Bigfoot, and then inconsistently try to dupe his students with a Uri Geller type demonstration. And if duping the class was his intent, why not take advantage of the deception for a little teaching about not not believing everything you see? Again, none of this is impossible to believe, just less consistent and less likely than a card-based bit of solo magic.

Just applying Occam’s Razor. It’s far simpler to explain this as a solo scam than it is to believe in a student who willingly participated in a deception for no rational purpose. That’s all.

I’m with the others: it was a stacked deck. (I knew those college days hanging out with the card sharps would come in handy someday. :))

Seriously, as they showed me, it is possible to get a fresh deck from the store, and to use an X-Acto knife to carefully open the cellophane where it has been folded and sealed. Then the stamp closing the box is steamed open, and the cards removed so they can be stacked. Then the whole thing is put back together again. Tiny drops of glue seal both the stamp and the cellophane.

The stack itself is not difficult. For example, a well-known stack is called a (IIRC) Stebbins stack. Fan such a stack out, and the cards look totally random, but the experienced sharp knows the patterns that they follow, both numerically and with their colours. Surprised your “psychic” didn’t identify them coming off the deck if that was the case.

False shuffles are quite possible too. Was the student who shuffled picked at random? Did he or she enthusiastically volunteer? Even if everything connected with the shuffling student seemed OK, could they have been a plant or a shill?

Finally, the instructor. He must have been in collusion. Why did he “help” by creating two piles in the corner? To neaten them up, of course. But also to move them out of the way to a predetermined place, perhaps so she could amaze you further by “finding” them later.

I agree; the cards are a giveaway. If you knew the nature of the demonstration ahead of time, you could have taken a deck of your own. Let her use her deck (or the instructor’s) for the first demonstration, then surprise her with a factory-fresh and sealed Bee or Bicycle deck, and see how she does with a second.

But I’d be skeptical as soon as any deck of cards is produced by anybody involved in the demonstration, the instructor included. If she could see as she claimed, why did she not (for example) navigate through an unfamiliar room while blindfolded, or played catch with someone, as you suggested? That would be far more demonstrative of such an ability than going through a deck of cards while safely seated in a chair.

…you’re pulling our collective leg. :slight_smile:
What college would support such a class?!?

Or, I agree it sounds like a stacked deck/helpful assistant/textured card kind of thing. Or maybe a hyponotically implanted memory? :slight_smile:

One of my friends makes his living as a magician, and there are usually a number of ways to produce any given effect. The most probable explanation for this one is that she could see. Not to say that there aren’t other ways to do the trick, just that the simplest way is to assure that she could see. One thing you didn’t mention is who provided the blindfold materials. Burlap is notoriously loose weaved, and even doubled she could probably easily see out, even if you couldn’t see in. If the fold was at the top she was probably looking through a single layer anyway. Think of looking into a lighted room through a window, and looking out of a room through the same window. Not all that mysterious. :frowning:

Actually, their was no need to have anyone in on the trick. You see, I used to perform magic at one time, and what you saw was a pretty standard display of mentalism. When I was reading the OP and got to the part about the cotton and burlap, I knew exactly what you saw and didn’t need to read further. The blindfold is a standard prop you can get out of the Abbotts Magic catalog. It’s called the see-all blindfold (I believe, it’s been a few years since I was into magic). I don’t want to give away too many secrets, but you can still see with the blindfold in place. BTW, the cotton is usually also glued to the eye sockets, or wads of putty placed over the eyes. Oh, and I have heard of magicians driving a car with these blindfolds, too.

Another point, the deck was almost certainly real. Trick decks always have a standard pattern on them because you don’t want them to stand out and be scrutinized too closely.

Basically, what you saw was an old magic trick.

I was going to post much the same thing. The use of burlap (a very loosely woven material) is a bit of a give-away. And cotton balls placed ON TOP of the eyelids wouldn’t get in her way. She need only open her eyes a slit at the bottom and peep out there (the cotton balls would be in the way only if they were placed high on her cheekbones at the bottoms of her eyes). To pull off the trick she didn’t need to see much–just colors and shapes (the locations of the piles).

Also, a cloth bandana makes a poor blindfold because of the contour of the nose and cheekbones. Such a blindfold can look secure from the outside, but the wearer may still be able to get some light in low along the line of the nose–just enough to see colors and the location of the piles. She needed only to hold her head back a touch in order to see out (or through) the bottom of the blindfold. Add in a deck of cards of unknown origin, and she has enough fallbacks to pull off the trick in one manner or another.

I’m just guessing here, of course, but I suspect that cotton balls and burlap don’t represent much of an obstacle for a good con artist.

And I would be a little pissed at the professor for presenting cheap con games as science, even in the name of “new-age multicultural science” of some sort.

Never mind. I didn’t see Jet Jaguar’s message before posting my own. Looks like the question has been answered by someone more knowledgeable than me.

OK, I am curious. Exactly what is the “The South Shall Rise Again” trick mentioned in the OP?

I was going to suggest that the OP is an awful lot of writing just to be pulling our legs, but I’m probably in collusion with Cervaise anyway. :slight_smile:

In the interest of correcting misinformation, I must post that the Stebbins stack mentioned above (it’s also referred to as the old “Si Stebbins”)is a fairly common simple stack, but it doesn’t appear very random – in fact, the cards alternate from red to black in the basic Stebbins setup.

And I agree with those who figure it’s the blindfold. Burlap and cotton balls don’t scream fair situation to me.

This is a simple trick based on the fact that people only notice what they are looking for.

You begin by suggesting to somebody that he cant reproduce what you say. ie, imply that he is a bad listener.

You go into a relatively long preamble about how closely the subject should pay attention to what you are about to say, and then repeat it exactly.

You get the subject all riled up, and then say:

“Ready, Ok.”

Then clear your throat and begin: “The South Shall Rise Again.” (or any formulaic phrase)

The trick is that you cleared your throat before you spoke.

This is the part of the trick that will, probably, go unnoticed. I know it sounds pretty flimsy, but if you do a good enough performance of it (building up the trick), then it will seem as though the throat clearing is just preparation for the act, and not part of it.

Try it a few times, you should be surprised by your success.

Another great trick that I just thought of (I learned it from the same person) is “Grandma likes Coffee, but she doesn’t like Tea.”

You give a variety of pairs of similar things: coffee, tea; ships, boats; oranges, tangerines.

Then you ask the subject to give you a set that Grandma likes/dislikes. The trick is that “…she doesn’t like ‘T’” Any word with the letter T in it is on the bad list. While this may seem obvious to you reading it here, it usually takes a while to figure out. (Took me far too long, considering I am usually good at these kinds of tricks)

The kicker is that afterward the subject realizes that the answer was staring him in the face the whole time in the latter half of the first pair. (If he doesn’t realize, take it upon yourself to point it out.

Thanks very much. The info on the blindfold is very enlightening (no pun intended). I guess I dismissed one avenue of trickery too quickly.

And yes, iamthewalrus, that’s exactly the trick I was referring to. The variation I saw also included the added distraction of a broom handle, held vertically and “pumped” as if one were gesturing with a flag or banner of some sort, lowering and raising it with the iambic rhythm of the phrase. It really is amazing how long it takes people to get it, while the few in on the joke stand around and chuckle.

And one more item:

I was less irritated with the instructor than I was surprised at how easily the majority of the class fell for it and bought into the “psychic” thing. Even as cynical as I profess to be about how gullible people are, I can’t escape the surprise I feel when I’m confronted with the evidence. Sigh…

Anyway, thanks for the concrete details about the trick’s mechanics. Ignorance has been fought today, and I was the battleground. :smiley:

That’s like “Fannie Doolie.” Fannie Doolie likes coffee, but doesn’t like tea. She likes boots, but doesn’t like shoes. Likes soccer but not hockey.

Martin Gardner has written that the only way he knew to ensure that a person attempting to demonstrate “eyeless vision” is not peeking is to use a box with solid metal walls over his/her head instead(with ventilation holes above and behind).

I remember reading several years ago for James Randi’s requirements for demonstrations involving blindfolds. You know, he’s the magician/psychic debunker.

According to him, the only kind of blindfold worth anything is essentially a metal can that encases the head. It must extend underneath the chin and encircle the neck. It must have absolutely no holes on the front, just some holes on the top and back for breathing.

With standard blindfolds it’s almost always possible to see a little bit down the sides of the nose.

Ed Suranyi

zgystardst, you beat me to it!

Ed Suranyi

And she likes grass, but she doesn’t like E.

Like that?