Hindsight Bias

The tendency to believe, after an event has occurred, that you would have predicted or expected the outcome — the 'I knew it all along' effect.

Once we know the outcome, our brain reconstructs our memory to make it seem like the result was obvious. This gives us a false sense of predictive ability.

• After a stock market crash, claiming you 'saw it coming.'
• Believing a failed startup's demise was obvious, even though many experts invested in it.
• Saying 'I knew they'd break up' after a couple's relationship ends.

• Write down your predictions before events unfold.
• Review your past predictions honestly to calibrate your judgment.
• Acknowledge uncertainty — most outcomes are not as predictable as they seem in retrospect.
• Be humble about your ability to foresee complex events.