Of course he is. There is no way we can tell. It is our assumption in science that such undetectable magic is not at work in the universe, but it is an assumption. Of course, this reasoning not only protects YEC ideas, but also any magical origin of the universe.
Assuming that Relative's scenario is correct, it still leaves us with the big question "why?" Why should EVERYTHING conspire to make the true past invisible. This is no accident, there is a choice at work here. If it is God's choice then He is open to all the accusations laid here in this thread and elsewhere of being a trickster, deceiver, or perhaps just illusionist, unless he does not want us to know about Him... He may just not want our attention.
If it was not God that made the choice, then who was it???
Oh, completely off-topic of course