You want to communicate something that customers understand but you don’t want to communicate something that customers find obvious (which is an indicator of the entire market with competitors having similar positioning)
It's hypothesized that complex systems are neither too chaotic, nor too predictable.
Too predictible = you're exploited by other systems. This is like introducing a me-too product.
Too unfamiliar = people reject it as art.
Too familiar = been done before, so meh.
Artists need to produce just the right kind of trade-off between familiarity and unfamiliarity.