Sarkus said:
"Subjective" is, in my view, when a fact is interpreted - as in your examples.
I think we agree on that.
Observer-dependent is when the fact / event relies on being observed to occur - but interpretation of that event is still subjective.
So, "subjective" to you pertains to the significance I give an event, and "observer-dependent" pertains to the event itself. This is different from what I have put forth. Here you have described an event, or what "really happened," which (being a quantum event) only happens if it is observed but nonetheless has a meaning separate from that taken by the observation. So the observation itself is subjective, the "fact" or that which is observed is not.
What I have described is a situation in which the observer is literally inseparable from the actual event. This doesn't depend on quantum physics at all, I only cited the problem of measurement in quantum physics as an example of what I think passes as subjectivity. It is not a scientific notion, though, it's an ontological one. It pertains to what it means to be. The questions that Heidegger was interested in were, "What exists?" and more fundamentally, "What is existence?" What he concluded was that even though there was a
being with or without human existence, nothing could yet be ultimately separated from that existence. "What it is," in other words, is always an answer to the question, "What is it?" and the peculiarity of the question is that it always has a questioner. Thus the actual state of affairs as distinguished from its interpretation is still the answer to a question, "What is actually the case?" And without the human to ask this question, the answer also disappears. There remains a being, but without a person to experience it, it is meaningless. It doesn't have leptons or galaxies or trees or intenet forums. These things are all undefined, they are identical to one another. There is still something there, but there is no telling what. There is no way to find out. No one exists to observe this huge being and carve distinctions into it, saying, "This is a tree, and the stuff around it is not a tree," or, "I am here, in the world!"
Thus, from Heidegger's perspective, two things possibly follow from your model of reality. The first is that in our understanding, the set of all real facts is an empty set -- we know nothing because we interpret everything. You think you know that you are a centimeter from the hotel; actually there is no hotel. You are dreaming. You are hallucinating. Someone put datura in your morning coffee, and you don't even realize that you're now slumped over your upturned mug with a hot puddle in your lap. You may exist for what seems like years in a dream world. Your whole understanding of the universe, including the fact that it has facts, is in your head. Nothing that you can know is a true fact by virtue of the notion that you are the one who knows it, and you could be wrong about absolutely anything. This is a position of skepticism, which can be arrived at without any ontological consideration. All it really means is that since nothing you observe or interact with is strictly identical to you, you have no first-person experience of being that thing, and therefore what it actually is and how close your estimation is to this remain uncertain. You can say that you've gotten "damn close," but there is no way of knowing with certainty that you are right about this. In fact, you may be exactly right, perfectly correct, and you would still be unable to escape doubt. Ultimately this is due to that the perceived actuality of one state of affairs implies the possibility of a contradictory state of affairs. Any state of affairs that could not be contradicted, i.e. a
factual state of affairs, is thus outside the bounds of logic and apprehension. We can never access it. It in itself
is completely mysterious; our experience of it is what is not.
The other response to your model of things is simply to point out that it doesn't contradict Heidegger's model at all. You have demonstrated nothing more than what anyone can demonstrate -- that you see things a certain way. You have shown me something subjective because
you have shown it to me. As you said at the outset, "putting words together doesn't make it so." From your perspective, you must realize that this remains true no matter how correct the words incidentally are. The most frustrating repartee by far is, "That's what you think." It is obviously true. It lends nothing to the conversation, however, because it is
always true, no matter what is in question, even if the question is whether facts exist. And the irrelevance of pointing this out is what makes it so hard to see sometimes that "interpretation," in its loosest sense, is the only way for a human to know the universe. All facts are facts
as experienced by us. That is, the fact of the celestial teapot is no fact at all. We simply have no evidence. No one has experienced a celestial teapot. Therefore it remains a hypothesis. It doesn't matter how long a celestial teapot has "in fact" been there until it is empirically verified that it has. If this empirical measurement is never made, then the actual celestial teapot remains forever irrelevant, for all intents and purposes not real, imaginary, hypothetical. Therefore, while the actual state of affairs clearly "does not care" about our estimation of it, it is always the latter that we deal with, never the former. And so facts as we encounter them
are inescapably subjective to some degree.