Does that capture it? — Andrew M
Pretty much, with a couple minor caveats:
The person's mind synthesizes the phenomenal object that subsequently appears to him. — Andrew M
Yes, the mind synthesizes the phenomenal object, However, there is some controversy on the Kantian rendition of appearance. Some say it means what a thing looks like, others say it is mere presence, like, e.g., I made my appearance at the family reunion. I favor the latter, because to say what a thing looks like presupposes the very attributes conceptions are supposed to give it. This relates because “subsequently appears” is temporally misplaced; if there is an affect on sensibility, then the mind is aware of an appearance of something. This affect, or appearance, is also called sensation by materialists, and occurs antecedent, not subsequent, to any synthesis.
the a priori categories of time and space — Andrew M
Time and space are not categories, they are “pure intuitions a priori”. From the previous quote, “intuitions to which all objects must conform” specifically means these two. There are no objects possible for human cognition that are not in space and time. This is not to say there are no objects, but rather there are no objects to which human cognition may apply. We can know nothing a posteriori that is not conditioned by space or time. There is no such thing as experience itself without those two conditions. There are two chapters....27 pages no less...... dedicated to just what those two intuitions are, what they do and how they do it.
As time and space belong to intuition, so too do the categories belong to understanding. As space and time are pure intuitions, that is, not derivable from any object of experience but belonging to any object of experience in particular, so too are the categories pure conceptions, that is, having no object of their own, but belonging to all objects of thought in general. Re: Wayfarer’s triangle, the category of quantity makes the thought of lines possible, the category of quality makes the thought of flat possible, the category of relation makes the thought of arranging lines in a certain shape possible, henceforth conceived as a triangle. Lines, flatness, arrangements are all mental images, called schema.
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Is the purpose of noumena just to serve as a logical placeholder at the boundary of knowledge? — Andrew M
Not quite. The logical placeholder for the boundary of knowledge, is the transcendental illusion. The placeholder for the logical boundary of understanding, are the noumena.
When we speak of phenomena, we tacitly grant a specific mode of intuition, we are speaking of a certain way things are done in the mind, predicated solely on the reality of empirical objects. But even granting the reality of empirical objects, it does not follow that the mode of intuition we use with respect to them is the only mode there is. From here, it also follows that understanding in general and the pure conceptions of the understanding in particular, pertain only to sensuous objects. It is, after all, the method by which we know them for what they seem to be. But just as there is no promise of only one mode of intuition, there is no promise that understanding cannot use its conceptions for that which is not sensuous, and can never be sensuous, or, in other words, that for which there is no object understanding can subsume under its conceptions. If there is no object for understanding to assign conceptions, there is no meaning, hence no possible cognition at all. Still, just because there is no object presented as phenomenon doesn’t preclude the possibility that understanding can think its own object and subsume that object under its pure conceptions.
No matter what, the next step is judgement, the determination of logical consistency with extent experience, or that of possible experience. If there is no phenomenon, yet understanding thinks it own object, that object is called noumenon. Herein lay the problem: what is there for judgement to determine, if there is no logical consistency to judge? We will never sense an object thought by understanding alone, we will never intuit anything, never cognize anything, never experience anything even remotely related to it.
But that’s not the real problem. Schema....remember schema? Where the HELL did schema come from? Well....I’ll be damned: understand thinks them. Holy crap, Batman!!! There are things understanding thinks. But wait, he said, with all due enthusiasm. How can something be thought by understanding, yet subsumed under the very category it is a part of? Schema apply to sensations, or...you know.....phenomena, as part of the categories, so they don’t count. We can intuit schema without contradicting the system. Things like numbers, succession/permanence in time, stuff like that.
Here’s the fun part, and what frosts my balls when people twist the Good Professor’s intent. The noumena, as opposed to schema, are thought as objects-in-themselves by some mode of intuition of which we are not informed. I mean, c’mon, man. It is easy to grasp that we can accept the real objects out there in the world as things-in-themselves, and all the brew-ha-ha that goes with it, so why not treat things thought by understanding alone the same way? Noumena are NOT things-in-themselves of the world, they are objects-of-themselves of the mind.
All that to say this: it is not the case that,
if anything were (or could be) known about noumena, then it wouldn't be noumena, it would be phenomena. — Andrew M
, because phenomena are derived from sensibility, and noumena are derived from understanding, so one can never be exchanged for the other. The reason we can’t know things-in-themselves is because the human cognitive system doesn’t permit it; the reason we can’t know noumena is because there isn’t anything to know. Things-in-themselves exist and are quite real so don’t need to be thought; objects-in-themselves exist but are not real so must be thought.
And no.....not a chance in hell I’m going to post the excerpt where Kant actually calls things-in-themselves as noumena. The context for it is too long and just shows where the common understanding of it is lop-sided at best. People get their philosophical kicks from saying, “ See? Right there!! He called it that himself, the crazy old fart!!” Sad, but true. That he said it, not that he’s an old fart.
Thanks for showing an interest in perhaps the epitome of paradigm-shifting philosophy.
And if anyone has a better understanding, please, by all means....correct me.