I suppose whether we're disagreeing would depend on what you think the scope of "being" is. When I say "ontology" here, I'm using the word very broadly, as in "the consideration of the grounds of all that does or can really exist." Mathematics is merely an abstract, or better, adjectival way of indicating the realities of how many things are present in a given situation. "Twoness" or "fourness" apply to an infinite number of particular objects, just as adjectives like "bigness" or "oldness" or "redness" do. So mathematical quantities do exist, but they exist in an adjectival rather than noun-al relation to reality.Will Bouwman wrote: ↑Tue Jul 23, 2024 9:51 amIn which case we are definitely talking about different subjects, because in my book, ontology is the metaphysical study of being. So while one might ponder the true nature of sheep and boards, the calculations are completely irrelevant. What do you think ontology is about?Immanuel Can wrote: ↑Mon Jul 22, 2024 4:26 pmI don't. Mathematics is only a conceptual description. But it does refer to objective realities, such as how many sheep you have in your pasture, or how many metres long a board is to fit your roof. And if you don't know how many sheep you have, or how big your roof is, it doesn't mean you have no number of sheep, nor that just any old board will fit your roof. There are ontological realities to which the calculations are relevant.Will Bouwman wrote: ↑Mon Jul 22, 2024 9:35 am I'm surprised that you include arithmetic among ontology.
That's actually the mistaken belief I'm critiquing.That goes without saying. You are still labouring under the mistaken belief that underdetermination implies that different hypotheses can be true.
That's an epistemological claim. I think it's also very rarely true. How would we determine what "accounts" for a given "datum" "equally well" to anything else? That would imply the utilization of a tacit and unrecognized criterion being applied in the background, would it not?All it means is that different hypotheses can account for the same data equally well,
It's been my claim from the start. Well done for finally realizing that.Well done for at least understanding that ontology and epistemology deal with different issues,...Immanuel Can wrote: ↑Mon Jul 22, 2024 4:26 pm"Phenomenon" is a word that places the emphasis on epistemology, on how a thing is perceived rather than how it actually is. So even the word "phenomenon" assumes the truth of what I'm saying: that there are two seperate issues here -- what IS, and what is KNOWN about what is.
"Phenomena exist," and "those phenomena refer to ontologically real things" are two very different claims. And the proving of the second is not achieved by appealing to the first.but again, ontology deals with the nature of being, the possibility that phenomena are all that exist is an entirely coherent hypothesis.
Yes, "phenomena" in the mind "exist." People do have such things as "delusions" as well as "impressions of reality." But the issue is whether any of those mind-internal-phenomenal-impressions refer at all to things in reality. Once again, we find that appealing to an epistemological claim does nothing to define the ontology.
That's just epistemology. It's not ontology.Will Bouwman wrote: ↑Mon Jul 22, 2024 9:35 amYou say:The point is not that there is more than one right answer, it is that there are always different ways to interpret exactly the same phenomena.Immanuel Can wrote: ↑Mon Jul 22, 2024 4:26 pmIt does not follow that if I "interpret" a snake as a cookie that there is more than one right answer to what I'm about to eat.
Maybe we should simplify those terms, so we eliminate misunderstanding. "Epistemology" is only about what people happen to know. "Ontology" is about what's really there, whether anybody knows it or not. The two often are strongly related, inasmuch as some things people know are stimulated by genuine things-out-there: but they experience them only as "phenomena," a word that refers to impressions on the mind that may or may not come from genuine reality...or as Oxford puts it, "the object of a person's perception; what the senses or the mind notice." That's what a phenomenon is. It's never certain, when we use the word "phenomenon" whether it's only a sense-impression, or whether (and how well) it corresponds to reality. But reality is the thing out there that "pushes back" (so to speak) against our phenomenological impressions.
Our epistemology does not define the totality of ontology.
They make reference to some of the same evidences. What justifies the claim that they are "equal"? And if they are not equal, then they are not "underdetermined." We can test them differently.Again, you don't understand. Idealism and materialism are both suppositions supported by exactly the same evidence.Immanuel Can wrote: ↑Mon Jul 22, 2024 4:26 pmThat's purely presuppositional, of course, and not at all evidentiary.Will Bouwman wrote: ↑Mon Jul 22, 2024 9:35 amIdealism has many forms and in some cases is based on the meeting point of ontology and epistemology, where all we can know for certain is that 'ideas' (any thought, perception, sensation etc) exist.
He was the same. A person literally cannot live one day with a belief that everything is only a product of ideation. A man who gets out of bed in the morning puts his feet on the floor not because he thinks it's the "idea of a floor," but that there's a floor beneath his feet. And a man who fails to recognize the difference between his current sense impressions and reality is soon run over by a car.Tell that to Berkeley.
Berkeley talked a good game; you can be quite certain he was never able to live it. Nobody can.
To say so is merely et tu quoque: even were it true, it would not save Idealism, so it's irrelevant to the present point, and off the topic.Or "unfalsifiable" as it is usually drafted. Well, so is Christianity.Immanuel Can wrote: ↑Mon Jul 22, 2024 4:26 pmMaybe. But it's also "non-falsifiable," which, in many contexts, can be asynonym for "totally speculative and unfounded." So we need better reasons to take Idealism with any degree of seriousness.