Cognitive fluency refers to the ease with which the human brain can process information. When information is presented in a way that is simple, clear, and easily understandable, we experience high cognitive fluency. Conversely, when information is complex, confusing, or difficult to process, we experience low cognitive fluency. This ease or difficulty in processing information has a significant impact on our perception of that information, influencing how we feel about it, how credible we find it, and how easily we remember it. High cognitive fluency tends to make things feel more familiar, comfortable, and true, while low cognitive fluency makes them feel unfamiliar, difficult, and less trustworthy. It’s important to note that cognitive fluency is often tied to our emotional state. The easier something is to process, the more positive the emotional reaction is. When our brain has to struggle to process information, that can sometimes be felt as negative.
The brain prefers things that are easily processed because it reduces mental effort. When we encounter information that flows smoothly and is easy to digest, our brain can process it using System 1, the quick, intuitive part of our thinking system. This effortless processing creates a feeling of familiarity and positivity that then gets transferred to the content of the information, making it seem more appealing, credible, and true. ....
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