P1 A thing has maximal existence if and only if it has existence in every possible world.
P2 Whatever has maximal excellence is omniscient, omnipotent and morally perfect.
P3 There is a possible world in which the property of possessing maximal existence is exemplified.
P4 The property of possessing maximal existence is exemplified in every possible world.
P5 If maximal existence is exemplified in every world, then it is exemplified in this world.

The only thing that satisfies “maximal existence” is the First Causer that is common to all Possible Worlds. But when we have more than one candidate First Causer we have more than one set of Possible Worlds.

And that is not logical.

If the Being has Maximal Greatness at all, it has Maximal Greatness "necessarily" (ie in all possible worlds). The Being cannot have Maximal Greatness "possibly" (ie in at least one possible world ("at least" includes "all", but "all" triggers the change from "possibly" to "necessarily")). So the premise "It is possible that there is a being that has maximal greatness" is incoherent and invalid.

It may be the case that the rules/constructs of Metaphysics or modal logic can provide a proof that shows the existence of a maximally excellent being. If that is the case, then the rules/constructs of Metaphysics or modal logic may not accurately/completely describe the actual world we inhabit. Hence any conclusion that relies on any such rules/constructs of Metaphysics or modal logic will not necessarily be valid for the actual world that we inhabit and as such will not necessarily apply to the actual world that we inhabit.

Looks like the universe picked one animal on earth to Excell, while all others adapted at a different rate?

If you have several pots of the same original water temperature to boil on the same degree of heat measure, with the differences in the various pots noted as pot sizes and water levels?

Wouldn't you think with some math and measurements that all the pots would boil at the same rate relative to the size and water level without any notable degree of difference between them that can be explained by math and science equation determining the rate of boiling by the size of pot and water level?

But science ignores the degree of difference between man and the entire animal kingdom!!

Actually that's where science gets a 0 for logic!

Explain the degree of difference in man relative to the degree of difference in like creatures.

Then compare that degree to man.
It's not mathematical or scientific!!

It almost feels like Sesame Street logic. That basic!!

Which of these things is not like the other...?

Lion, Jaguar, Bob Cat, House Cat
Polar Bear, Brown Bear, Asian Bear, Sloth Bear
Moose, Caribou, Elk, Deer
Man, Ape

If we take this sampling all animals are relative in degree of difference.
Even the apes degree of difference is relative to the stages of difference all the way down the lists of animals to the house cat.

There are no jumps in degree of difference between any of the animals. They all are adaptive to their habitat and live by the instict needed for survival.

There are 0 a big fat ZERO that are anything near the degree of difference found 100 % through nature that comes close to a reasonable degree of difference stepping up to man.

Then even adaptation, all animals would adapt and improve at a similar degree of difference in improvements. Again it's the same when compared to all animals and then to man!

Here is an example chart of degree off difference, even for man, using the most basic man without any advancements
House Cat --
..........Bear ------
..........Lion ---------
...........Ape -------------
Basic Man -----------------------------------------------------------------------------------
...Adv Man ------------------------------------------------------------------------------------------

2 - Maximal greatness is possible only if Maximality is exemplified.

3 - Without Maximality, then Maximal Greatness is impossible!

4 - Since Maximality exists, ONLY those who are made in the image of Maximality can achieve the highest possible Maximum Greatness in the image of Maximality!

5 - Those who are made in the image of Maximality achieve Maximum Greatness by an ever present goal within themselves, and set before themselves ever reaching for their Maximum Greatness with standards reflective of the image of Maximality!

6 - The goal to achieve Maximum Greatness can never achieved if Maximality is altered by a lesser image of Maximality in any and every possible world!

7 - Maximum Greatness is achieved by reaching it's Maximum Potential in it's Maximum Purpose through achieving it's highest possible likeness to an unaltered image of Maximality.
**

Qualities pertaining to Maximum Excellence in Omniscience, Omnipotence, and Moral Perfection necessary to achieve Maximum Greatness is determined by the highest possible Evolution in any and every possible world.

Maximum Excellence is point of reference, and Maximum Greatness is point of reference!

1 Maximum Greatness exists in any and every possible world.

2 Maximum Excellence exists in every possible way relative to the greatest or at the very least minimum application necessary to achieve it's highest possible evolution to Maximum Greatness in any and every possible world.

3 If any of the possible worlds consists of only ants and bugs, then Maximum Excellence is whatever qualities are necessary to achieve it's highest possible evolution to Maximum Greatness in that possible world.

4 So Maximum Excellence is relative to the greater or at least minimum applications necessary to achieve highest evolution of Maximum Greatness for any and all possible world.

5 Maximum Excellence entails the application of qualities necessary to achieve Maximum Greatness relative to any and every possible world.

6 There exists a Being of Maximum Excellence relative to the greatest or at least minimum qualities necessary to achieve Maximum Greatness in any and every possible world.

7 Maximum Excellence as Omniscience, Omnipotence, and Moral Perfection are relative to the greater or at least minimum application necessary to achieve it's highest possible evolution to Maximum Greatness in every possible world.

8 What is impossible in one possible world, may be be possible in other possible worlds.

9 What is possible in one possible world may be impossible in another possible world.

10 The proposition, there exists an Omnicient, Omnipotent, and Morally Perfect Being of Maximum Excellence relative to the greater or at least minimum application necessary to achieve it's highest possible evolution to Maximum Greatness in an actual possible world.

11 So the conclusion is there must be a Maximum Excellent Being in any and every possible world that has the greatest or at least minimum qualities necessary in Omniscience, Omnipotence, and Moral Perfection relevant to the acievement of highest possible evolution in Maximum Greatness in that actual possible world .
**
12 - Nothing exists if No-Maximality is exemplified

13 - Maximal greatness is possible only if Maximality is exemplified.

14 - Without Maximality, then Maximal Greatness is impossible!

15 - Since Maximality exists, ONLY those who are made in the image of Maximality can achieve the highest possible Maximum Greatness in the image of Maximality!

16 - Those who are made in the image of Maximality achieve Maximum Greatness by an ever present goal within themselves, and set before themselves ever reaching for their Maximum Greatness with standards reflective of the image of Maximality!

17 - The goal to achieve Maximum Greatness can never achieved if Maximality is altered by a lesser image of Maximality in any and every possible world!

18 - Maximum Greatness is achieved by reaching it's Maximum Potential in it's Maximum Purpose through achieving it's highest possible likeness to an unaltered image of Maximality.
**

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Yes ** 1 - Maximum Greatness exists in any and every possible world.***

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Yes ** 2 - Maximum Excellence exists in every possible way relative to the greater or at least minimum degree necessary to achieve Maximum Greatness in any and every possible world.***

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***No!
How did you determine Maximum Excellence entails Omniscience, Omnipotence, Moral Perfection is necessary for EVERY possible world.
Maximum Excellence is point of reference and so is Maximum Greatness!
If any of the possible worlds only consisted of ants and bugs, then Maximum Greatness is achieved
by whatever qualities are necessary for that actual worlds Maximum Excellence.
So Maximum Excellence is relative to the greater or at least minimum degree necessary to achieve Maximum Greatness for any possible world. ***

SO *** 3 - Maximum Excellence entails qualities necessary to achieve the Maximum Greatness necessary relative to any and every possible world. ***

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So *** 4. - There exists a Being at Maximum Excellence relative to the greater or at least minimum qualities necessary to achieve Maximum Greatness in any and every possible world. ***

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NO *** 5 - Maximum Excellence as Omniscience, Omnipotence, and Moral Perfection is relative to the greater or at least minimum degree necessary to achieve Maximum Greatness in every possible world. ***

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No *** 6 What is impossible in one possible world may be be possible in other possible worlds.
And What is possible in one possible world may be impossible in another possible world.***

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NO *** 7. The proposition "There exists an Omnicient, Omnipotent, and Morally Perfect Being of Maximum Excellence relative to the greater or at least minimum degree necessary to achieve Maximum Greatness in an actual possible world***

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YES *** 8. So the conclusion is there is a Maximum Excellent Being in the actual world that has greater or at minimum qualities in Omniscience, Omnipotence, and Moral Perfection relevant to the Greater Maximum acievement of our highest possible Evolution in an actual possible world . ***