All arguments for "God" have their own internal consistency, which makes them logically airtight, but ultimately they fail because they 'prove' nothing more than the argument works. They all rely on the existence of the very thing they're intended to prove, otherwise they don't mean anything.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
