Hindsight Bias
The inclination, after an event has occurred, to see the event as having been predictable, despite there having been little or no objective basis for predicting it. Often expressed as “I knew it all along.”
Examples
- After an election result, believing the outcome was obvious all along
- After a stock market crash, claiming the signs were clear in retrospect
- After a sports upset, saying “anyone could have seen that coming”
Why It Happens
Once we know the outcome, our brain reconstructs the past to make it seem inevitable. The actual uncertainty we felt before the event is overwritten.
How to Counteract
- Keep a decision journal — record your predictions and reasoning before outcomes
- Actively recall what you actually believed before the event
- Ask “What else could have happened?”