Using the Earth as the example, what is the undetermined object here? — Andrew M
As you probably know, the first critique is 700-odd pages and took ten years to compose, and included in there, in order to fulfill the.....
“...completeness and thoroughness necessary in the execution of the present task. The aims set before us are not arbitrarily proposed, but are imposed upon us by the nature of cognition itself....”,
.........are terminologies for every damn thing specific to it. That, in conjunction with the methodology to which the terms belong, leads one down the merry, albeit unabridged, path of theoretical human thought.
So skip to the chase: an object presented to sensibility is nothing but affect, lets us know there’s something for the mind to get involved with. Imagination takes the affect, synthesizes to it a bunch of intuitions. (The psychologists simply call this memory; neurobiologists call it activated neural networks; physicalists, brain states...etc, etc, etc). Now we have a phenomenon, an undetermined object. Object because it is now intuited as being external to us hence empirical, and undetermined because as yet no concepts have been thought for it, which is the job of the understanding. We cannot yet have any knowledge whatsoever of the phenomenon, not even that sensibility has been affected. Again, psychologists call this the unconscious; neurobiologists call it part of the autonomic nervous system, physicalists call it hogwash....etc, etc, etc.
All the above is relatively instantaneous, of course. In the case of Earth, which is nothing new, all the concepts pertinent to the phenomenon have been previously processed, so all that’s required is for judgement to give its blessing.....yup, that’s Earth all right.....we cognize logical consistency, and know we’re looking at, talking about, picturing.....whatever....a very specific object of common experience.
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where else would the Earth exist? — Andrew M
Because the real object Earth affects sensibility, it’s physical location absolutely must be in space and time, an altogether convenient way of saying.....outside us, and serves as validation of objective reality. The representation of the empirical object that resides in the mind exists as a collection of determinant conceptions, thereby experienced, and referred to, as Earth.
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So why would Kant be assuming we know anything of objects a priori? — Andrew M
It isn’t that we know anything of objects a priori, it is rather that the means of knowing anything at all rests on principles a priori. Every cause has an effect; all bodies are extended; no two straight lines enclose a space....and so on. Some concepts we know a priori as ideas of conditions that have no object, round, singular, existence, necessity, to name a few, similar to Platonic Forms, Aristotelian predicaments (categories), even Hume’s passions.....which really aren’t, but ok.
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I do not acknowledge noumena. They serve no purpose other than to make people go where Kant himself refused to go and suppose for themselves things he never meant. It’s fine to understand how they were developed, but to use them for anything cannot be done.
Anyway......