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Doctor Who Following Cyberman

An amazing illusion where the Cybermen appear to follow you around the room! Our brain makes assumptions when we view the Cyberman's face, it thinks it should appear like a typical convex face that it has experience off. However in this case that is not true, as the face is actually concave. Our brain cannot understand this and as a result a rather strange illusion takes place where the Cyberman appears to be following us around the room!