Question 1

What is the difference between Hindsight bias and Outcome bias?

Accepted Answer

Outcome bias judges the quality of a decision by how it turned out. Hindsight bias distorts what you believe was knowable at the time. They stack: hindsight supplies the false certainty that outcome bias then punishes people for not having.

Question 2

How do I know if I mean Hindsight Bias rather than Outcome bias?

Accepted Answer

Readers who land here meaning Hindsight Bias rather than Outcome bias are usually searching for phrases like “I knew it all along effect”, “why does everything seem obvious afterwards”, “hindsight bias examples”.

Aspect	Hindsight bias	Outcome bias
Distorts	What was knowable	How you judge the decision
Question	Could they have known?	Did it work?
Victim	Your past self	The decision-maker
Order	First	Second

Side by side

Which one did you mean?

Hindsight Bias

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