I am defining God as all-existence/the Abolute - both manifest and unmanifest. So in that sense no one can live without God. If you say this is my limit and everything beyond it I dont believe and is nonsense you are welcome to keep your scepticism only dont think that this is an attitude of a honest thinker.
That's not the attitude of an honest thinker either. Everything that exists is God, therefore you cannot live without God, but if you disagree, you're not being honest with yourself? Really?