Any idea, complex or not, can be made simple by choosing the right language to describe it.
The idea does not become simpler for everyone. Just for people that know this language.
A language shared by the same group of people create a community and experts are the one in the group that know how to speak it unconsciously.
Being an expert is good for a living, but only creative one will draw fortune like a magnet through the law of attraction.
Creativity is only about combining ideas to create a new one.
You can't build a house without bricks, so you can't be creative without external ideas.
But you can't use external ideas without knowing the language to express them simply.
A lack a creativity is the result of a person speaking the same language day after day, by extent it is a sign of a person staying too much within the same community.