It is proven "beyond reasonable doubt" that God does not exist because no one in the course of human history has provided a single bit of evidence that even begins to cast doubt on rational examination of any claim made by any church. Such a profound lack of veracity is strong evidence to the contrary, plenty strong enough for me, and many other atheists to declare it proven beyond reasonable doubt. But as your colours are nailed firmly to a t-shaped post and you (heaven forbid!!) could never be wrong... I dont expect you to understand that.I'm still wondering how Tao claims to disprove that God exists. Surely then I might see the assumed error?!