We all know, that some logos are considered to be inspirational works of art while most of them are average at best. Recently, I wrote a short article on the proposition density in design and how it relates to memorability of famous logos (and other works of art).
In summary: I believe that the success of many well-known logos has a lot to do with the relationship between the elements they are made of and the meaning these elements convey — in other words, the proposition density, which could be defined as the amount of information conveyed in an object or environment per unit element.
The higher the proposition density, the more memorable and engaging your design becomes. You can read more on it in my Medium article here.