The word "ignorance" does very nicely here and needs no further embellishment. It is not a pejorative, rather a (reversible) state of being, wherein we all, in fact, begin. Ignorance is passive yet curable. Pseudoscience takes EFFORT to perpetuate and to manufacture. Where the two often cross paths is in the wilfully ignorant individual, who is convinced their conclusions are iron-clad, unassailable, and feels no compulsion to continue to learn. These types often resort to pseudoscience when challenged, either because they don't know the difference or they are trying to defend the un-defendable. See: homeopathy. Those who acknowledge this type of practice as sort of a prop to a healing interaction with another person are vastly different than those who wildly toss out quantum theory, bizarre and incorrect principles of molecular biology, and "chi" willy-nilly in order to defend a practice they have long since decided was completely valid and worthwhile, evidence be damned.
So what of the purely ignorant basing knowledge on personal observation. or second hand accounts, if we can't call that pseudoscience, what is the word we use to describe that? Do we then cross over into the realm of "Naivete"? If so I'm fine with that.
Fine with me. Knowledge can come in many flavors. But some of them are more easily disseminated and shared without corruption than others. If you insist, I shall gladly amend the notion that the words "knowledge" and "science" are 100% interchangeable and add that the sort of knowledge that most closely fits with science is the kind that is measurable, reproducible, and tangible/palpable/visible/audible/insert-mode-of-perception-of-your-choice to more than one person. One's imaginary friend might be very well "known" to that individual, but that does not necessarily make it real. And yes, I'm very well aware that this begins to blend the lines. No need to have the vapors over this. Most humans are quite capable of acknowledging these ephemeral things without being paralyzed by raptures of self-absorbed enlightenment or succumbing to self-aggrandizing philosophy-speak. :lol:
I think we have to acknowledge inspiration, dreams, and spontaneous personal revelations, as part of the process of the discovery of actual knowledge.