In a memorable scene from the 2010s Sherlock series, Benedict Cumberbatch’s Sherlock Holmes uses his “mind palace” to piece together crucial information. Words and images float around his head, which he arranges with his hands, navigating a maze of memories. While this visualization may seem like a dramatic flair, it’s based on a real and centuries-old technique known as the “memory palace” or the method of loci.
This method has been used by memory champions for generations, dating back to ancient Greece, and even today, it helps people dramatically improve their memory. In this article, we dive into the truth behind memory palaces, how they work, and whether they can truly boost memory retention.
What is a Memory Palace?
A memory palace, as Sherlock fans may recognize, is a visualization technique where you associate memories or information with specific locations in an imagined space. The idea is to create a mental map where you place the items you wish to remember—whether that’s a list of words, numbers, or events—into different rooms or locations of a familiar place. The more detailed the visualization, the easier it is to retrieve the information later.
Dr. Nicole Long, a psychologist at the University of Virginia, explains it simply: “You create a mental picture of a place, and then link the things you need to remember with spots in that place.”
How Does It Work?
Let’s say you need to memorize a list of items—like the winners of the last 10 Academy Awards for Best Actress. You might imagine walking through your home, with each actress’s name represented in a different room: Emma Stone at the front door, Michelle Yeoh in the kitchen, and so on. This creates a structured visual framework where the information is tied to distinct, memorable places.
The method of loci leverages spatial memory, which is processed by the hippocampus, an area of the brain responsible for navigation and memory. Associating abstract information with spatial locations makes the brain more efficient at recalling it.
What Can You Store in a Memory Palace?
The method of loci works best for discrete, simple information—like numbers, words, or short lists. For example, memorizing the first 20 digits of pi is an ideal task for this method. However, more complex concepts, like long stories or abstract ideas, may not work as well since they can become confusing if crammed into a single space.
Dr. Long cautions, “If you try to memorize an extensive amount of complex data in one place, it can get overwhelming and hard to keep track of.”
How to Build Your Own Memory Palace
To start, I created my own memory palace in my apartment. I visualized my front door as 3.14159, the kitchen as 265, and so on, creating a mental journey through my home with the numbers spread across different spaces.
In just a few minutes, I was able to mentally organize and store the first 20 digits of pi. I tested myself repeatedly over the following days, reciting the digits and checking them with my mental map. The process was surprisingly easy and satisfying.
Why Does This Technique Work?
One of the main reasons the memory palace technique is effective is that it forces you to engage with the material actively. “Just thinking about the strategies for remembering something helps,” Dr. Long explains. “The more actively you engage with the information, the better you’ll remember it.”
It also helps because the brain is highly tuned to spatial memory, and using familiar places to store information taps into that natural strength. In essence, you’re training your brain to recall facts by creating vivid, spatial associations that are easier to access.
Can It Improve Overall Memory?
While using a memory palace technique might not completely overhaul your memory, it’s certainly an effective tool for remembering certain types of information. Dr. Long says, “It can’t hurt, and it may help with some specific memory tasks.”
The key is practice. With consistent use, a memory palace can help you remember lists, numbers, and even some short-term tasks that would otherwise slip through the cracks. For someone like me—who struggles with remembering even the most basic items—it felt like a huge win to commit something like pi’s first 20 digits to memory.
Is Memorizing the First 20 Digits of Pi Impressive?
To some, memorizing the first 20 digits of pi might seem trivial. But for someone who often forgets key details, the ability to recall these digits felt like a major accomplishment. It’s proof that with the right tools, even the most absent-minded among us can harness a little extra brainpower.
Even though I know I’ll probably never have to recite pi to anyone on the street, using a memory palace gave me a satisfying sense of control over my own cognitive abilities.
This story may be updated with more information as it becomes available.
