Let’s start with the universe and see whether that several quadrillionisone is a better prospect than God being three in one.
You have massively underestimated the number of objects in the Universe - even assuming it is finite.
But don't forget, it is only you who has a problem with seeing an entity both as a single thing and a composite of its parts.
First of all the entities in the universe can exist separately from another since precursor entities, may not exist anymore.
I'm not sure that that is the case. Can you provide any evidence?
In the case of the trinity, none of ‘members’ have independent existence.
So? Can humans have independent existence? If so, then Jesus could too.
There are lots of analogies...
Argument by analogy is a fallacy.
God being actually three totally independently existing Father, Son and Holy Spirit being the poorest to the point of error.
That's a straw man. Nobody has argued that the three parts of God are independent.
Again although I dispute the necessity of the universe, I can ask and do ask you once again Jeremy, what is it about the totality of existence which is necessary and not contingent?
It could be the totality of existence.
That said, I don't accept your simplistic view of the Universe based on contingency that you read about in a pop-philosophy book and don't really understand.
