Well, this conversation got shitty fast. I wrote
>>6 , and my point was that there are some "objective" standards that people can look at to evaluate writing as being literature or not. I don't think the term is arbitrary; one of the main things that separates popular writing from literature is "high seriousness." To what extent something has "high seriousness" can of course be argued. Even someone completely unfamiliar with society and the idea of "literature", could, given a definition of "literature" including the concept of "high seriousness", develop an opinion as to whether or not a work qualified as "literature."
This whole alien discussion is irrelevent. I thought
>>5 's alien comment was claiming that there are no firm standards as to what "literature" is, and that because people just make up what qualifies and what doesn't with no real pattern, any consciousness external to normal society would be unable to understand the term.