metaphor beats realism because it allows the audience to connect to the material with their own feeling and experience, while realism narrows down the possibility of the connection to a minimum.
cristopher nolan is a technician and he wanted to solve the black hole technically, which is an error.
stanley kubrick solved the wormhole travel metaphorically and emotionally which allowed us to connect to it in our own way.
stanley knew when to be a technician and when to be an artist.
artist uses metaphors and technician uses realism.
at the end a painting of rothko will communicate more than an instagram photo of a breakfast, no matter how good the breakfast is.