Disproving Odin - An Experiment in arguing with a theist with Theist logic

[Abaddon_ire]

1. Everything which begins to exist has a cause.

Go ahead and prove that. Take your time.

There has been a lot of talk about that in this thread.   If it is false, then the the logic would not follow.  However it is more reasonable to believe that this is true; rather than the opposite.   I find that many atheists scoff at, and make claims about much less,  but things poofing into existence without cause or reason seems to be readily accepted.   I find that for some, it all depends on which side of the argument God is on.

Except that we know that is not the case.

Take a single atom of U235. When will it decay exactly and what causes it to do so?