I’ve just picked myself up off the concrete floor of this basement. It’s cluttered, dimly lit, and smells of dust and bananas. Some of the scattered items have been here as long as I’ve known the place—the ballerina music box, the wedding dress, the journal—but I’ve recently made a few additions of my own.
Welcome to my memory palace. It might not be what you expect. It is not laid out very neatly, it is certainly not alphabetized, and it’s non-orientable in Euclidean space. It is not a catalogue of tobacco
Don’t be startled by the emu. She’s just resting, hunkered down on a luxurious velvet cushion, making little cooing sounds that go “orff, orff, orff”. Another person’s mind can be uncomfortably alien, so I’ll understand if you’re put off by the mannequin of myself with pointed ears who stands nearby. If you make eye contact, she’ll turn inside out through her mouth a few times before vomiting a small plastic 747. She means you no harm. Do watch out for the slippery banana peel, smelling ripe and attracting fruit flies, that’s always directly beneath the trap door. It gets me every time.
This little basement is where I store everything important I learn about cognitive biases and heuristics that involve memory in ways directly relevant to memory techniques. We’re looking for just such a bias, so it’s bound to be here somewhere. I know because an elephant lowered his trunk so we could climb down through the floor of the IU Credit Union. Elephants, you see, never forget.
The banana’s definitely about humor, so that isn’t it. The emu’s name is Von Restorff, which is closely related but not quite what I’m after either. To the left of Von Restorff (velvet, resting, orff orff orff), I spot something familiar. The meaning hasn’t resolved into full focus, yet it feels right. There’s something round on the table, see it?, about two feet tall. Ah yes, a ferris wheel! You can see colors now as it spins slowly in place, sending quiet music drifting past as if from a great distance. Bend down to listen. Carnival music? What is that about? What do I associate with “carnival”?
Bazar! Of course. This is the bizarreness effect. It’s all coming back to me.
To review the details, we’ll need to go one level deeper into the imagined experience. We certainly can’t fit in one of those carriages at our present size, so let’s shrink down and hop in. It’ll be just like sticking your nose in a pensieve.
The basement room dissolves, and we’re at a carnival on the 4H Fairgrounds near my childhood home. The ragtime organ is bright and clear. Tiny people down below lick oversized lollypops, and clowns hand out balloon animals. The summer breeze is warm and smells like buttered popcorn, funnel cakes, and livestock. You can feel the mechanical jerking of the carriage as we rotate slowly toward the ground, where the operator lets us out.
The first thing we pass once safely on the ground is some sort of acrobat. On a stage, he dances on his hands—only his hands—to the carnival music, and I’m astonished at the complexity of the choreography and the grace with which he executes it given the strange—I mean, the bizarre—constraint.
I simply must learn, so I ask for a lesson. You can too, if you like. He obliges. He starts us out with the basics of balance, but I’m eager to try his flashy spins and stranger stunts. Soon, he leaves us to practice on our own. I remember the mechanics of the fancier stuff, but I can’t actually perform any of it because I keep falling over. It’s terribly frustrating, especially since I could tell during the lesson I’d likely forget the basics. Straightforward though it seems, I can’t maintain a simple handstand for more than a few seconds. That’s the bizarreness effect at work, in one of its two guises: Boring things don’t tend to stick in memory.
When I go back to ask for a review of fundamentals, I find that he’s teaching an entire class. They’ve been on handstands for quite a while, it seems, and though a few people are still struggling, at least as many are clearly getting bored. I’m struck by an idea for improving the class, and pursue that rather than further instruction. I’ll be right back, promise.
When I was first learning logic, my professor would assign problems she called “goats”. A “goat” is a problem that is much harder than anything that might appear on a test. The idea is that anyone who tackles a goat, whether or not she succeeds, will find the test refreshingly manageable. The name came from a parable involving a goat, a rabbi, a large Jewish family, and a shack that was far too small for them all. The story’s not important now, but its appearance in a logic lecture seemed quite bizarre at the time, so I’ll always remember it effortlessly. The other side of bizarreness: Weird shit’s hard to forget.
There’s a petting zoo just one booth over from the stage, so I borrow a goat and lead it to the hand-dancer. “Your students learn at different rates,” I tell him, “and are motivated by different kinds of challenges. Instead of having everyone do basic handstands over and over, you could challenge the advanced students to do a handstand on this goat while it trots around the fairgrounds.” He takes my advice, and soon the students up the ante by doing handstands on each other atop the goat. (It’s a very strong goat who doesn’t mind.) Thank goodness I remembered about the goat!
It’s getting dark and we should probably head back soon. The ferris wheel is all lit up now, a brilliant reminder of our purpose here, so let’s pause to review what we’ve learned. “The bizarreness effect,” I say to you. “If you want to remember something, make it weird. But there’s a little more to it, and it’s something more important. A use case we must always recognize in real life.”
My trigger is a feeling of going in circles. Sometimes information is very important, and I know it’s important, but it’s too mundane to be memorable. You know the feeling. You grasp at the information and let it repeat over and over in your mind, hoping mere repeated exposure will be enough to make it last. But it keeps spinning and going nowhere, because your native memory software just wasn’t made to learn boring things no matter how useful they may turn out to be.