Lots of material here. Not sure if all my replies will be worth debating if there are disagreements, and I’m confident enough that there will be. Most is an exchange of perspective. I'm mainly interested in the notions of actuality and potentiality as applies to a global telos.
Therefore, that the independently existing ideas exist, cannot be known in any sense beyond an ungrounded assumption, and we must maintain this in our representation of reality, that independently existing ideas is a possibility. The next step of the problem is that an eternally existing possibility is not a real possibility due to the principle of plenitude. So eternal, immutable, independent "Ideas" is refuted in this way. — Metaphysician Undercover
If ideas are taken to necessarily be human representations of their referents, then I would understand this position of “[human] representations of reality”. However, this to me seems at odds with at least some Platonic Forms. To me, representations are phenomenal in constituency (either perceivable via the physiological senses or perceivable via imagination in like manners: sights, sounds, smells, proprioceptions, etc.). This while some Platonic Forms, such as that of the aesthetic, for example, are of themselves articles of awareness only in so far as being purely sense-ual and, hence, noumenal: thereby more aligned to faculties such as those of understanding (of sense/meaning)—albeit, this despite the aesthetic as Form being most often apprehended through concordant awareness of the phenomenal. Here, my position is that our awareness of at least some Forms—though they may find representation via words or other symbols—cannot constitute representations of what actually is. For example, an awareness of the aesthetic is itself non-representational … and any representation of what is experienced (though it may help to convey the essence of meaning from one person to another) will in no way of itself embody the given experience (if one for whatever reason cannot experience what another experiences as aesthetic, no amount of phenomenal representation will convey the noumenal reality that is experienced by the other).
All the same, can you further explain the argument from the principle of plentitude: why it precludes any eternally existent possibility from being a real possibility? This to me is tied into what I express toward the end of this post regarding a global telos.
But this produces a categorical separation between human ideas, which according to Aristotle's argument are of the nature of potential, and the independent Forms which are of the nature of actual. In theology the independent (actual) Forms are the divine Ideas, property of God. There is a necessary separation between these Forms, which are independent from, and prior to material existence, and human ideas, which are dependent on the human soul's union with the body. — Metaphysician Undercover
While I can feel at home in certain discussions of theology, these independent Forms to me will hold even when addressed atheistically (i.e. when contemplated in the absence of Deity or deities, angels , and the like). The independent Forms in my view are occurring limitations which bind that which can be. To again use the aesthetic as example, this particular independent Form (here presuming it to so be) will limit, constrain, and form that which in essence is sense-ual attraction and aversion—this from the most base variants of this Form which can be found in the lower lifeforms to more refined and elevated variants of this same Form which can be found among mankind. As Form, the aesthetic emanates through the phenomenal in relation to observers and, in its most refined state, is purely noumenal: the former phenomenal variants being the allegorical shadows on the wall in Plato’s cave; the latter noumenal variants being the Form’s non-representational pure nature—which is sometimes accessible to humans. Given that all beings hold attractions and aversions, all beings are then limited, constrained, and formed by an intrinsic sense of the aesthetic; because no sensation-based attraction or repulsion could manifest devoid of this limitation on what can be, the limitation of the aesthetic is a priori to any potential attraction or aversion of individual beings. (This is quite the mouthful and not at all well substantiated, I’m well aware.)
I bring this perspective up, however, both to offer the possibility that independent Forms need not be theistic in their nature and, for me more importantly, to say that (at least some) independent Forms, as universals, are that which actively in-forms all beings’ identity—thereby making the actuality of the Forms minimally concurrent with the actuality of the beings whose identity is thus brought about via these universal Forms. Else argued, to me, the independent Forms are never fully severed from the beings thus formed—even if these beings hold no conscious awareness of these Forms; e.g. a cat may hypothetically sense sense-ual attraction toward some stimuli (say, some patch of colors) and aversions to others—this being the cat’s aesthetics—even though the cat has no comprehension of what aesthetics are. Yet, the greater the awareness of the beings in-formed by aesthetics, the more the beings can approach sense-ual understanding / awareness of this Forms’ noumenal, true (or pure) non-representational nature. E.g., all life will hold affinities and aversions to phenomenal stimuli but only humans can hold awareness of non-carnal beauty (here taking beauty to be a more refined aesthetic) … and, at times, even reapply this sense of beauty back to carnal bodies: e.g. a straight guy’s appreciation of the beauty to a male nude figure, like Michelangelo’s David, without any sense of sexual desire or any aversion due to this same issue of sexuality (top scores if a straight guy can at times likewise hold appreciation of non-carnal aesthetics when considering the female nude, I’d think).
In overview, imo universal Forms cannot be severed from anything which they any way in-form … this even when that which is thereby in-formed holds no conscious awareness of the universal Forms’ most likely noumenal nature.
Needless to add, these are perspectives on this issue.
The important part regarding the global telos as both actuality and potentiality:
Plato demonstrated, that in nature, the form of all material things precedes the material existence of the thing, and Aristotle followed this principle with a claim of "that the thing will be" only follows from "what the thing will be". — Metaphysician Undercover
I'm so far in full agreement with this.
To me the global telos is also something which can eventually become fully actualized on a global scale by all sentience. In this way, the factual global telos also serves as a global end-state of being. I know this perspective can easily be ridiculed as unusual. Still, when comparing this outlook with theistic worldviews, it can readily approximate notions such as “closer proximity to God / G-d”, “to Brahman”, “to Nirvana”, “to Moksha”, and so on. Even when one addresses this global telos in a purely atheistic manner, it is for me the universal noumenal Form (as both global telos and global end-state of being) on which all other universal Forms are contingent—via which, again, all presently actual individual beings become bound, or limited, and, thereby, given their present actual form.
Then, as to the relation of actual and potential: This global telos is both actual as real telos and as an eventual, predetermined, global end-state of being (apo’s Heat Death; my hypothesis of an “unbounded awareness”)—as well as not yet manifest as an actualized, global end-state of being. So while it is thus actual as global telos (and as a metaphysically determinate end-state of being), because it is not yet manifest, it is also only a potential future manifestation whose realization is contingent upon numerous givens—including (in at least the metaphysics I uphold) the free-willed intent of all conscious agents so desiring it to become manifest. (Hence, it’s a given to me that we’re in no danger of it becoming manifest anytime soon, nor in any number of millennia from now.)
In this manner it is both an actuality that is a priori (akin to the Kantian sense; not necessarily in a temporal sense) to all other forms … while also being as end-state a potentiality forever awaiting to be realized.
Though the metaphysics are notably different, I see this relation between actuality and potentiality as holding fast both for a physicalist notion of the Heat Death as global end-state of being as well as for the non-physicalist metaphysics I’ve just touched upon … wherein the end-state is that of what for brevity I’ve so far termed “unbounded awareness” within this thread (including in the OP).
TMK, the conclusion that a global telos is both an a priori actuality and a temporal potentiality remains wherever a global telos is postulated. It is this stated conclusion that gets me interested in the logics of actuality and potentiality.
Then, as a generalized metaphysical hypothetical: Why can it not be logically viable that an eternally present, a priori actuality is coexistent with the temporal potentiality which it as a priori actuality brings forth? Otherwise expressed, given that the global manifestation of the end-state (as global telos) is itself contingent upon multiple unpredictable factors (such as the freewill of all coexisting agents), then this temporal potentiality of a manifested end-state will itself be contingently eternal: the moment in which the globally manifested end-state occurs forever remains indeterminate until all the proper events occur which will result in the end-state’s manifestation.
I maintain this possibility. In which case, one simultaneously has an eternal a priori actuality and a contingently eternal temporal potentiality as a consequence of a global telos. (But this seems to contradict what you say Aristotle argued to be.)