The main reason I'm an atheist

[Pat Mustard]

That is, what we could call, speculation. No matter how big the universe is, I do not know if God has actually done something to that vast universe (I am talking about outside of the Milky Way), but I do know for sure that God has personal interest in human affairs, as you put it. That is proven by the fact that since the very human ever existing (Adam) God never stoped having a relationship with humanity, ultimately seeking to redeem it from the corruption and death that its ancestors (Adam and Eve) have put them to, by uniting the fallen human nature with the divine nature of Christ, God. If you do not believe that God is intimately united with every human person on earth and is present at every movement you make, or every thought you think, you are not talking about christianity, because this is exactly what christianity states.

You're going to have to bring some evidence to the table for your assertion, there. Because we have not yet encountered a single phenomena which cannot be explained by natural means.

Oh, and to the theology of christianity, that was created c1,700 years ago by a bunch of men who collectively knew less of the workings of the world than the average fifteen year old European does today.