How Confirmation Bias Helps You Think Faster express

Original: "The adaptive nature of confirmation bias"

· Dorje C. Brody, Karl J. Friston, Bernhard K. Meister, Emmanuel M. Pothos

arXiv:2606.23325 · 2026-06-22 · CC BY 4.0 · 1 min

The tendency to notice only the familiar turns out to be not a flaw, but an optimal strategy.

We're used to thinking that noticing only confirmations of our guesses is a mistake. But recent calculations, inspired by wave behavior, flip that view. It turns out that the habit of seeking the familiar is the best way to reduce information noise (scientists call it entropy). Even John von Neumann showed that probabilities can behave not like percentages, but like overlapping waves.

The habit of confirming your thoughts reduces errors faster than random search and requires minimal memory.

Our mind is like a river that deepens its channel with each flow. Water follows the path of least resistance, and the sun lights only familiar shores. Without this strategy, we'd have to process hundreds of times more data to avoid drowning in information noise. It's not a weakness, but a natural conservation of energy. This is how nature helps us find a path to meaning in chaos.

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In quantum probability, chances don't add up like percentages, but like waves: they can amplify or cancel each other out.

Scientists

Claude Shannon Jacob Bekenstein Wilhelm Wien Ludwig Boltzmann Charles Bennett John von Neumann

Concepts

bayesian evidence Bayesian inference decision making proof of concept nested sampling hypothesis testing bayes factor binomial distribution null hypothesis testing axiom of choice active learning maximum likelihood Reinforcement Learning prior distribution model selection probabilistic model probability theory principle of maximum entropy Hamilton's rule quantum annealing

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How Confirmation Bias Helps You Think Faster express