The sad reality is, most of us would side with a bumper sticker over a philosophy book, just because one is easier to understand.
“The more difficult it becomes to process a series of statements, the less credit you give them overall. During metacognition, the process of thinking about your own thinking, if you take a step back and notice that one way of looking at an argument is much easier than another, you will tend to prefer the easier way to process information and then leap to the conclusion that it is also more likely to be correct.
In experiments where two facts were placed side by side, subjects tended to rate statements as more likely to be true when those statements were presented in simple, legible type than when printed in a weird font with a difficult-to-read color pattern. Similarly, a barrage of counterarguments taking up a full page seems to be less persuasive to a naysayer than a single, simple, powerful statement.”
-David McRaney, ‘You Are Not So Smart’ (1)