Bizarreness Effect
Strange or unusual things lodge in our memory more firmly than ordinary ones.
What it means
The bizarreness effect is the observation that information presented in a bizarre, unusual, or surreal way is remembered better than information presented in a straightforward, common way. The weirder something is, the more stubbornly it sticks in your head.
This is closely related to the Von Restorff Effect (distinctiveness aids recall), but the mechanism is specifically about strangeness. Bizarre images and scenarios require more cognitive processing - your brain has to work harder to make sense of them, and that extra effort creates stronger memory traces. A normal sentence about a dog sitting on a mat barely registers. A sentence about a dog wearing a top hat and playing chess demands your attention, and that attention translates into better encoding.
The bizarreness effect is widely used in memory techniques like the method of loci, where you create vivid, strange mental images to anchor information. It's also why advertising often uses surreal imagery - not because the product is surreal, but because the strangeness makes the ad memorable.
In the real world
You're trying to memorise a shopping list: milk, eggs, bread, bananas. Boring. You'll forget it by the time you park the car. But if you imagine a giant egg riding a banana like a horse, crashing into a wall of bread while milk rains from the sky? You'll remember every item. The bizarreness is the memory device.
The thought to hold onto
Your memory has a soft spot for the strange. If something seems too ordinary to remember, make it weird. Your brain will thank you.