You: There are some problems in science that have not been solved in hundreds of years; should we finally give up and decide that God is at the root of these problems? That would not be a wise course of action. We must keep searching for a solution until such time as one appears.

I admit that it would be very nice if we could eventually stop looking for answers and admit God's hand, but that would not be sensible. Imagine a police investigator who, after investigating a series of brutal murders for more than ten years, finally gives up and decides that God must be doing it. There are few, including, I hope, yourself, who would say that he has made the correct decision.

Because there in no time limit for a scientist, an answer could come at any time. A scientist can never decide that she has reached the end of her investigation just because she is unable to solve a particular problem. The answer may lie in another lab, with another scientist, in another time.

If a scientist can never decide that an investigation is over unless it has found a reasonable solution other than God, then investigations of unexplained phenomena must go on forever.

You may not find this comfortable, but it is true.

Aaron: Be that as it may, if we could prove that God exists, then God would no longer be an excuse for not finding an answer, but an answer in himself.

You: Perhaps, but we cannot base a proof of his existence on unexplained phenomena when we cannot even prove that there are any unexplained phenomena.

Aaron: Granted. I will show you a different way of arriving at the same conclusion.