Categories, if you haven't already figured out, are superficial constructs created to constrain human perceptions. Still, in order to communicate efficiently and effectively, it is often helpful to rely on such categories. That being said, real™ text can be in almost any genre, as long as it causes readers to question existence in some way, preferbly to the extent that schizophrenia occurs. The preferred length, is 2 to 3 pages.
Video and audio accompaniments get Bonus Realzy Points™.