It took me several minutes too, but to get to a different conclusion: I didn't notice the lack of reflection you mention, what I noticed is that the real Arnie must be the one "inside" the mirror, while the one giving…
It took me several minutes too, but to get to a different conclusion: I didn't notice the lack of reflection you mention, what I noticed is that the real Arnie must be the one "inside" the mirror, while the one giving…