I was sitting in a Philisophy of Science class a long, long time ago, and there was a new question being introduced.
Is observation theory-laden?
The professor held up his white coffee cup, and asked us what we see.
I saw a coffee cup.
He explained that we were really seeing a white splotch on our visual field (ie: favoring syntax over semantics), and then went into some weird theoretical stuff about photons and rods and cones and whatnot, which I found confusing because I’m just a mathematician, not a philosophical observation theorist.
I couldn’t see the disembodied context-free white splotch that he claimed that I was seeing, but upon further observation, I was able to determine that the coffee cup was white (which I hadn’t noticed at first, since the coffee-cuppedness of the object was what I perceived directly, and the white splotch only came to me after learning the theory behind it, and concentrating on decontextualuzing my visual field thru will power alone).
My direct perception was of the (semantical) coffee cup, but thru the use of philosophical observation theory, I was able to actually see the (syntactical) decontextualized white splotch.
The professor explained that (according to philosophical observation theory), my direct perception was the white splotch, which only later acquired it’s semantical character as a coffee cup.
And because of this complicated theory, I was mistaken about my own perceptions, and actually perceived the syntax prior to the semantics.
Therefore, according to the professor, Observation was NOT theory laden.
Philosophy is hard if you’re a mathematician, without an understanding of philosophical observation theory. Without the theory, we can only make guesses about what we are actually observing directly.
Thru a proper understanding of theory, we can correct our perceptions of our own perceptions, bringing our perceptions more in line with theory, thereby proving that observation is not theory-laden.
QED