>>87853315>>87852745It's closer to the treasure island fallacy. A 'perfect' object must, by definition, embody and all qualities of perfection. One such quality is existence. Therefore the perfect object must actually exist, as it is a necessary (or self assuring) being.
The fallacy is presupposition. You're assigning qualities to something to argue it's existence, but an object must first exist to hold quality.
>>87854509While the above is expanded from the works of Leibniz, what you've commented on leans more towards Spinoza.
Spinoza's definition of God was more encompassing. It was closer to how we would use the word universe today; in reference to all things. He argued that God (the universe) was at origin a singular necessary, or self caused system.
For his open mindedness, he would later be accused of atheism by the Church.
Anyone actually interested in this stuff should read up on 16~17th century philosophy, as it forms the basis for what would later become the study of metaphysics.