Does a God exist?

[Angrboda]

These things don't 'exist' simultaneously.  We can have different conceptions of things simultaneously, but conceptions aren't existents.  The rest doesn't follow because your empirical evidence is not valid.

Consider an example: 

Am I existing simultaneously with your existence? Yes. Is carbon existing simultaneously with both our existences? Yes. Does your existing depend on my simultaneous existing? No. Does carbon depend on either yours or my or both our existing? No. Does both our existing depend on carbon's simultaneous existing? Yes. If in one moment, carbon ceased existing, then both you and I, in the exact same moment, would also cease existing. We exist on the condition that carbon simultaneously exists.

We are carbon existing. You're just playing word games. We don't exist separate from existing as carbon and other molecules. You've made an existential relationship out of a conceptual one. Providing examples isn't going to clear that error.