You don't understand Probability

> This is because any God worthy of the name must have been a being of colossal intelligence, a supermind, an entity of extremely low probability--a very improbable being indeed

You can not impose a probability on the existence of a supreme being. Either a thing is true or its isn't. You can only ascertain a probability on an event if it is part of some random experiment. For example we can impose a probability on evolution having occured, because it requires abiogenesis - i.e. evolution requires an enormous number of chance steps (each of very low probability). That is the experiment. When you talk about the Supreme Being there is no experiment - no chance events are involved, therefore it is meaningless to talk about probabilities.

JV.