Cognitive bias
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Part of:Decisions without regret →
All fallacies and biasesCognitive biases list
Hindsight bias makes a past event feel as if it was obviously going to happen, once you know that it did. The feeling of “I knew it” arrives after the result and rewrites how uncertain the situation was.
Hindsight bias is filed here as a bias. If you cannot point to that move in the remark in front of you, you do not yet have this bias. Disliking the conclusion is not enough, and a true premise does not repair a broken step.
This page adds no new definition and no statistic. The three scenes below only move the library’s example into a meeting, a news sentence, and a social feed. None of them is a reported case, and none of them carries a number.
The library’s example is the anchor, quoted so the later scenes cannot drift: “After a match, a supporter says the defeat was obvious from the team sheet. Before kickoff the same supporter expected a win.” The three that follow change the room and keep the step.
Picture that example in a meeting, aimed at someone who has to answer before the next item. If the room cannot give the reply on the card, it has not answered the point. It has used Hindsight bias. No survey of offices is claimed. The test is whether the step matches the card.
The same step can sit in a speech or a headline, where the pause is shorter and the audience is larger. Imagine the stored example said into a microphone and left unpacked. This is not a claim about a particular broadcast or a particular paper. The correction is still the reply on the card, not a different theory of the press.
Imagine the example as a caption. Agreement is not evidence the step was valid, and outrage is not evidence a different bias was in play. Match the step to the definition before you name it.
Record the prediction before the outcome, with a degree of confidence. Compare that record with the later feeling. The record is the evidence. The feeling is the bias.
“That is Hindsight bias” is not yet an answer. Name the step, then ask the question the card tells you to ask. If the remark survives, drop the label. If it fails, you still owe a reason for what you think instead. The reply does not hand you a new conclusion.
Hindsight bias is easy to shout in place of a neighbour. The nearest card people mix this up with is Confirmation bias. Use the comparison linked under this section when you are unsure which name fits. The comparison quotes the cards. It does not invent a third definition.
Write down the sentence you think is the mistake. If it matches one definition, use that name. If it matches neither, do not force a label. If it matches both, answer the two steps separately.
After a defeat, a supporter says it was obvious, though beforehand they expected a win. What is this?
The options and the explanation open in the quiz. Scoring stays on this device. There is no pass mark on this card.
Hindsight bias makes a past event feel as if it was obviously going to happen, once you know that it did. The feeling of “I knew it” arrives after the result and rewrites how uncertain the situation was.
After a match, a supporter says the defeat was obvious from the team sheet. Before kickoff the same supporter expected a win.
Record the prediction before the outcome, with a degree of confidence. Compare that record with the later feeling. The record is the evidence. The feeling is the bias.