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Cognitive Bias Cards
Cognitive Bias Cards · Card 8

Hindsight Bias

Once you know how something turned out, it feels like you always knew it would — even when, at the time, it was genuinely uncertain.

Before
Genuinely uncertain
After
"I knew it all along"
In Practice

After a crash, it feels obvious the signs were "right there" — but almost no one was saying that with real confidence beforehand.

Generic Example

After a team loses, it feels obvious they were going to — even though before the match, most people genuinely didn't know.

Did I actually believe this before it happened — or only after?