Say the word 'Alien' to a hundred people and likely you will get one hundred different mental pictures of an alien. Purely speculation and imagination. Put that to non-theme writing. A person could write a piece and have a hundred people read it. A hundred different responses would be generated.
Some people take the idea surface as concrete.
Others dig deeper and expound upon the given ideas. Still others pull in outside factors to add to the reading. So many different ways to respond to a piece of writing. Those hard core scientists won't like me because I will not implement their analyzing techniques. Maybe this paper will bring interglobal peace and happiness between our world and another.