Worth sharing, from the Wikipedia page:
Research in psychology has shown that processing fluency influences different kinds of judgments.
Other studies have shown that when presenting people with a factual statement, manipulations that make the statement easier to mentally process—even totally nonsubstantive changes like writing it in a cleaner font or making it rhyme or simply repeating it—can alter judgment of the truth of the statement, along with evaluation of the intelligence of the statement’s author.
In one study, people were more likely to judge easy-to-read statements as true. This means that perceived beauty and judged truth have a common underlying experience, namely processing fluency. Indeed, experiments showed that beauty is used as an indication for the correctness of mathematical solutions. This supports the idea that beauty is intuitively seen as truth. Processing fluency may be one of the foundations of intuition.
People process information more shallowly when processing fluency is high and employ an analytical thinking style when processing fluency is low.