Who throws the dice for you?

[Heywood]

An argument from ignorance ought to at least embody some feature which can in principle make it distinguishable from other possible propositions that could be advanced under the same absence of evidence to the contrary, should the absence of evidence to the contrary under which it is advanced ever be rectified.

There is no absence of evidence to the contrary Chuck. There is only evidence. The evidence consist of observations and a theorem which is accepted to be true.

As far as not defining what God is...Newton didn't define what gravity was. The big bang singularity or a singularity at the center of a black hole isn't defined either. 1 divided by infinity isn't defined. It is perfectly okay and sometimes even useful to discuss or think about things which are not rigorously defined.

You'll have to do better.