Fluency of Ideas

Our experiences and narratives are extremely important to consider when we make judgments about the world, however we rarely think deeply about the reasons why we hold the beliefs we do. We rarely pause to consider whether our opinions are biased, whether our limited set of experiences shape the narratives that play in our mind, and how this influences our entire outlook on life. Instead, we rely on the fluency of ideas to judge our thoughts and opinions as accurate.

 

In Thinking Fast and Slow Daniel Kahneman writes about ideas from Cass Sunstein and jurist Timur Kuran explaining their views on fluency, “the importance of an idea is often judged by the fluency (and emotional charge) with which that idea comes to mind.” It is easy to characterize an entire group of people as hardworking, or lazy, or greedy, or funny based entirely on a single interaction with a single person from that group. We don’t pause to ask if our interaction with one person is really a good reflection of all people who fit the same group as that person, we instead allow the fluency of our past experiences to shape our opinions of all people in that group.

 

And our ideas and the fluency with which those ideas come to mind don’t have to come from our own personal experience. If a claim is repeated often enough, we will have trouble distinguishing it from truth, even if it is absurd and doesn’t have any connection to reality. The idea will come to mind more fluently, and consequently the idea will start to feel true. We don’t have to have direct experience with something if a great marketing campaign has lodge an opinion or slogan in mind that we can quickly recall.

 

If we are in an important decision-making role, it is important that we recognize this fluency bias. The fluency of ideas will drive us toward a set of conclusions that might not be in our best interests. A clever marketing campaign, a trite saying repeated by salient public leaders, or a few extreme yet random personal experiences can bias our judgment. We have to find a way to step back, recognize the narrative at hand, and find reliable data to help us make better decisions, otherwise we might end up judging ideas and making decisions based on faulty reasoning.
As an addendum to this post (originally written on 10/04/2020), this morning I began The Better Angels of Our Nature: Why Violence Has Declined, by Steven Pinker. Early in the introduction, Pinker states that violence in almost all forms is decreasing, despite the fact that for many of us, it feels as though violence is as front and center in our world as ever before. Pinker argues that our subjective experience of out of control violence is in some ways due to the fluency bias that Kahneman describes from Sunstein and Kuran. Pinker writes,

 

“No matter how small the percentage of violent deaths may be, in absolute numbers there will always be enough of them to fill the evening news, so people’s impressions of violence will be disconnected from the actual proportions.”¬†

 

The fluency effect causes an observation to feel correct, even if it is not reflective of actual trends or rates in reality.

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