You may not have heard of the Baader-Meinhof phenomenon, but once I’ve explained it you will start noticing it everywhere.
A little joke for psychologists there.
In 1994, someone left a comment on the website of the St. Paul Pioneer Press (Minnesota) saying that he had heard two references to the Red Army Faction, AKA the Baader-Meinhof gang — a 1970s German terrorist organisation — in the space of 24 hours, having never previously been aware of them. This somehow provided a new name for a cognitive bias. Don’t let anyone tell you that posting online comments on regional newspaper websites is a waste of time.
Otherwise known as frequency bias, the Baader-Meinhof phenomenon is a combination of selective attention bias (paying more attention to some things than to others) and confirmation bias (looking for things that you agree with or which serve your purposes in some way).
Arnold Zwicky added another aspect when he wrote about the significance of things happening recently, describing the “recency illusion” as …
… the belief that things YOU have noticed only recently are in fact recent.
The classic example is people’s tendency to notice a certain type of car once they own one themselves, especially when they bought it recently.
Of course it is possible that the thing you’ve just started noticing is truly becoming more frequent. I have noticed more shirts, flags and other merchandise related to Arsenal FC recently. This may be because the team is doing very well this season and I am more conscious of them as a result. Or it may be that Arsenal fans are less coy about showing their support after years of under-performing. What is less likely is that there are significantly more Arsenal fans than there were before.
Christopher Snowden, “Sudden deaths and the Baader-Meinhof phenomenon”, The Snowden Substack, 2023-01-21.
April 24, 2023
QotD: The Baader-Meinhof phenomenon
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