We have the world. Its nature and conditions are very similar to Earth, only the people are very different in one detail (but I would say it is a very important one). 

People in this world are not able to imagine anything; they completely lack the creativity. 

What does it mean, a little more precisely:  

**They cannot think about anything that is not very strictly based on things they see around.** It is possible to create something new, but it must be very logically established on some already real cause without any intermediate innovational steps.

I can imagine that in this kind of world any progress would be very slow.  

**The art, I think, is possible** - in the books people can describe their one lives, they can draw pictures or build statues of things or people they see (etc.)  

But what I am not sure about: Has the art, a concept essentially based on creativity, **any reason to grow?** Why would people do that? 

To communicate? To give something to the world? Would they be even interested in consuming the art anymore?  

How would it look like? What kind of art would be on top?