All Bill “proves” is a willful, fundamental lack of understanding of cosmology. I suppose you could back everything up to the moment of the big-bang and say, “what caused that, HUH?” To which I'd reply “natural forces Bill”. It doesn't require the invention of a supernatural deity. Now I don't claim to know this with certainty, but it is the best explanation I've seen. Our understanding of the natural forces at play in the universe is limited by our ability to observe them from our perch on a speck of dust near the rim of a slightly larger mote we know as our galaxy. Our planet is utterly insignificant on the scale of the universe we've been able to observe thus far. This is an extremely threatening idea to some that shakes their core beliefs in God, religion, Santa Claus, the Easter Bunny and Unicorns. Heck, unicorns are probably more likely than the rest. It causes true believers to get angry and defensive instead of None of us will know if there is a deity until we “shuffle off this mortal coil” assuming our passing is of the least bit of interest to a putative creator. Seems… unlikely.
