Obviously any fiction is going to be a combination of what is invented, what is overheard, what is experienced, what is experienced by people close to you, what you are told, what you have read, all mixed together into this kind of soup which, like any good soup, at the end you cannot really disting
Poets say science takes away from the beauty of the stars - mere globs of gas atoms. I, too, can see the stars on a desert night, and feel them. But do I see less or more?