🧩 The Rut That Feels Like a Shortcut

The Rut That Feels Like a Shortcut

In 1942, psychologist Abraham Luchins trained volunteers to solve a series of math puzzles using one specific formula — pouring water between three differently-sized jars to reach a target amount. Then he gave them a new puzzle solvable by that same formula, but also solvable by a much simpler, shorter method.

Almost everyone who'd been trained on the earlier puzzles kept reaching for the longer, more complicated formula — while a separate group who hadn't seen the training puzzles spotted the simple solution almost immediately. Luchins called it the Einstellung effect, from the German for "setting" or "attitude" — what he used to describe a mental groove: once a solution has worked before, it becomes strangely hard to notice a better one sitting right next to it.

Decades later, researchers Merim Bilalić and colleagues found the same trap catches chess experts, including masters.

Expertise didn't cancel the rut. In some ways, it paved it.

🧩 Notice the Groove Before You Follow It

1. When a solution comes to mind instantly, ask if it's the best one or just the most familiar one.
2. Before you commit, write down one more possible answer — even a bad one. The act of hunting for it is often enough to spot a better option hiding nearby.
3. If you're the most experienced person in the room, ask yourself "what would a total beginner try here?" instead of trusting that your experience has already found the best path.
4. Ask someone with less history on the problem how they'd solve it. Their lack of a groove is an asset, not a gap.