Reasoning Biases
Understand cognitive biases that affect logical thinking and problem-solving. Discover how these shortcuts impact analysis and decision-making processes.
Backfire Effect
When presented with evidence that contradicts our beliefs, we often reject it and strengthen our original position. This cognitive response transforms corrections into reinforcement of misinformation.
Base Rate Fallacy
We're naturally drawn to specific, vivid details while ignoring broader statistical realities. This mental blindspot leads us to overestimate unlikely events and make poor probability judgments in everything from medical decisions to risk assessment.
Belief Bias
We're wired to judge arguments based on how well they align with our existing beliefs, not by their actual logical merit. This mental shortcut can blind us to valid evidence that challenges our worldview.
Dunning–Kruger Effect
We often overestimate our abilities when we know the least about a subject, while experts frequently undervalue their skills. This invisible confidence gap affects everything from workplace decisions to personal development.
Gambler's Fallacy
The mistaken belief that if something happens more frequently than normal during a given period, it will happen less frequently in the future—or vice versa—despite statistical independence.
Planning Fallacy
We consistently underestimate how long projects will take and how much they'll cost—even when we have plenty of past evidence showing our optimism is unrealistic. This rosy outlook sets us up for missed deadlines and budget overruns.