Why We’re Wired to Love Simple Solutions – Neuroscience News

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Summary: People’s preference for simple explanations stems from their desire for efficiency in both understanding situations and achieving goals. Researchers found that participants consistently favored explanations involving common, reliable causes over complex or rare ones.

This pattern extended to evaluating actions, where simpler methods were seen as faster and more effective. The findings suggest a shared mental process linking simplicity with efficiency in reasoning and decision-making.

Simplicity isn’t just about clarity—it reflects a deeply ingrained cognitive preference for effective outcomes. This insight could shape how we approach communication and problem-solving in various contexts.

Key Facts:

  • Simpler explanations appeal because they align with the desire for efficiency.
  • Common and reliable causes are more attractive for both understanding and action.
  • Efficiency in explanations mirrors preferences for straightforward goal achievement.

Source: University of Waterloo

People’s preference for simple explanations of any situation is connected to their desire to execute tasks efficiently, finds a new study from the University of Waterloo.

“These findings show that our preference for simpler explanations mirrors how we evaluate actions. Simplicity isn’t just valued in explanations—it’s part of how we think about achieving results efficiently,” said Claudia Sehl, lead author and a PhD candidate in developmental psychology at Waterloo.

Overall, the findings suggest that efficiency is valued both in explanations and when achieving goals. Credit: Neuroscience News

Sehl collaborated with Waterloo developmental psychology professors Ori Friedman and Stephanie Denison on this study. They conducted seven experiments involving 2,820 participants who were presented with simple and complex ways to explain an outcome or achieve a goal. Participants consistently favoured the simpler options.

The study found that people are more attracted to explanations that involve common and reliable causes. If a cause seemed rare or unreliable, it was viewed as less helpful.

In other words, the simpler and more dependable the cause, the more appealing it was both for understanding an event and for achieving results in the future.

“Essentially, the more common and reliable a cause, the more appealing it became as both an explanation and a method for achieving outcomes,” Sehl said.

“Additionally, whether describing causes or seeking outcomes, using fewer causes seems both faster and more effective, pointing to a shared mental process behind both preferences.”

Overall, the findings suggest that efficiency is valued both in explanations and when achieving goals.

“Our research suggests that people care a lot about efficiency—the idea of doing more with less—and that this focus on efficiency affects how people think about both explanations and accomplishments,” Friedman said.  

About this cognition research news

Author: Ryon Jones
Source: University of Waterloo
Contact: Ryon Jones – University of Waterloo
Image: The image is credited to Neuroscience News

Original Research: Open access.
Doing things efficiently: Testing an account of why simple explanations are satisfying” by Ori Friedman et al. Cognitive Psychology


Abstract

Doing things efficiently: Testing an account of why simple explanations are satisfying

People often find simple explanations more satisfying than complex ones.

Across seven preregistered experiments, we provide evidence that this simplicity preference is not specific to explanations and may instead arises from a broader tendency to prefer completing goals in efficient ways.

In each experiment, participants (total N=2820) learned of simple and complex methods for producing an outcome, and judged which was more appealing—either as an explanation why the outcome happened, or as a process for producing it.

Participants showed similar preferences across judgments. They preferred simple methods as explanations and processes in tasks with no statistical information about the reliability or pervasiveness of causal elements.

But when this statistical information was provided, preferences for simple causes often diminished and reversed in both kinds of judgments.

Together, these findings suggest that people may assess explanations much in the same ways they assess methods for completing goals, and that both kinds of judgments depend on the same cognitive mechanisms.

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