I cannot blame you
@muslimorthodoxy for no longer responding; you dig yourself deeper into incoherence with every response thus far. Now then, as a courtesy to everyone following this exchange, I will respond to your rather disorganized diatribe of a word salad:
1. You asked: "Why is it metaphysically incoherent for that “arbitrary limit” to be brute? How does that entail being “modally contingent”?
Answer: It is logically possible for God's essence to have more or less than 3 dimensions since denying His 3-dimensionality is not a contradiction. It is logically possible for the top-down size or length of your God's essence to be any finite number N. This means that both of these limits on God's essence are contingent - they could be another way. That is modal contingency.
As Dr. Rassmussen
@worldviewdesign writes: "We can use this general reasoning to form an argument against positing arbitrary limits, such as in size, shape, powers, or in any other attribute that comes in various degrees" ("The Argument from Contingency",
joshualrasmussen.com/article…)
These two contingent features [dimension and size] of your God 's essence require something outside of God's essence to set their values because they are arbitrary limits that could have been otherwise with different values. You cannot merely assert that these contingent limits of your deity are uncaused. That makes it a brute contingency. The atheist can easily take any feature of the Cosmos and assert them as uncaused and call it a day.
2. You Must Demonstrate the Necessity of God's Size and Limits: Later in your reply, you assert God's 3D-ness and His finite height as "brute necessities" not contingencies. Okay, then prove it to us!
Notwithstanding that necessities are never brute - they are either necessitated by other necessities or they are necessary in themselves - you now allege that God's finite dimensions and size are modally necessary, not contingent. The burden of proof is upon you to logically demonstrate that God is necessarily 3D and necessarily has a limited height - what is your logical argument for these features of God being necessary?
3. Absolute Divine Simplicity lacks any limits requiring an external specifier:
God in the belief of all other Muslims (Sunnis, Twelvers, Zaydis, Ismailis, Sufis) does not require any external simplifier because God is absolutely simple in Himself - meaning God has no external or internal boundaries - unlike your spatially limited deity who is internally and externally bounded. Since our God has no boundaries or hudud like your deity, there is no requirement to posit an external entity to cause God to be simple or non-complex.
4. Aseity is incompatible with proper parts
Your inane comment about aseity really exposes how much of an amateur you are at this. Aseity means that God is not dependent upon anything distinct from Himself. You are smuggling in the adjective "external", but even this will not help you here.
First, even the modern day shaykh al-Islam of you and your gang of Analytic Taymis, Ryan Mullins (who abhors ADS), says that aseity means that God is not dependent on anything else including non-casual grounding relations. Even if we start from your definition that God is not caused by anything "external" to Himself, Mullins concludes that an a se God must be ungrounded and independent of all else: "Any being that has its existence grounded in another will not be a se. Hence, aseity implies not having a ground for one’s existence" (Mullins 2023; see attached).
William Hasker, who replied to Mullins 2023 article says the same thing about aseity: "A being which is a se should be one which does not at all depend for its existence on anything other than itself" (Hasker 2023, 64)
Now, your conception of God is one in which God is constituted by proper parts that are spatially and ontologically distinct from God Himself and from each other. This plainly means that your God's existence and essence are grounded by these proper parts, each of which has its own existence and essence. Since you already deny ADS, you admit that each proper part is numerically distinct from God and "lesser" than the whole (God).
In your theology, God's attributes are concrete spatial particulars not abstracta or immaterial attributes. For you, God's Feet, Hands, Face, Fingers, Eyes, Shin, etc. all occupy different spatial positions and extensions in relation to one another and they each have a spatial extent that is lesser than God's overall spatial extent. And this further leads to the fact that each proper part of your God has an arbitrarily contingent spatial extension as well. That is yet another brute contingency you need to explain.
Since your God is a "whole" comprised of spatially distinct proper parts, the total top-down size of your God is literally the sum of the top-down sizes of each of His Proper Parts (His Hands/Face/Feet/Fingers). Mathematically, this means the total magnitude of your God is directly dependent upon the aggregation of the magnitudes of each of His Proper Parts and each Part contributes its own specific size to the total size of your God's top-down magnitude. This is no different than the total weight of my iPhone being the total weight if its internal parts. This may not be "casual" dependence but this is certainly a grounding dependence, which is ontological dependence. This is equivalent to saying a 6 meter length wall is dependent upon the aggregation the 6 one meter length bricks that comprise that wall. Nobody would dispute that the wall is dependent upon the aggregation of those bricks.
To put this differently, the existence and aggregation of God's parts are the necessary and sufficient condition for God's Existence; but God is not the necessary and sufficient condition for the existence of each proper part. Your God exists only because His proper parts exist. The existence of your God presupposes and requires the existence and aggregation of God's Proper Parts. Therefore, the parts of your God have ontic and explanatory priority over God himself. This formulation does not apply in the reverse -- the existence of each proper part does not presuppose or require the existence of a whole or aggregate. This proves there is a one-way dependency of God upon His proper parts and thus, your God is not a se.
Again, if you deny this and opt to change the dependence relation to say that God's parts depend upon God, then these are not really parts, they are creations and God Himself remains simple and independent. Alternatively, you can copy the even worse solution of Islamic Apex (Anas) and say that God and His proper parts exist in a two-way ontological dependence relations - which is viciously circular and denies aseity to both. As Hasker says, "A being which is a se should be one which does not at all depend for its existence on anything other than itself; if the being on which it depends is itself dependent on the original being, that fact does not cancel out the dependence of the first on the second" (Hasker 2024, 63-64).
5. Creation necessarily proceeding from God does not negate God's aseity
You have tried to assert that, in my theology, God must be dependent on His creation because God creates necessarily. This claim simply does not logically follow and is quite unserious. I already refuted this idiotic claim in my 2022 publication on modal collapse (a).
Not only that, even your shaykh Ryan Mullins admitted in his 2023 article that creation being necessitated by God does NOT negate God's aseity: "On panentheism, God always and necessarily exists with a created and causally dependent cosmos. Yet I find it doubtful that this somehow entails that God is not a se because God’s existence is not dependent upon nor derived from the created universe" (Mullins 2023, 54)