You do realize visuospatial thinking and spatial intelligence is acquired at a young age and that "natural inclination" is actually societal thinking which is by the way varying culture to culture. (Yes, this is true. I didn't study it psychology for nothing) Also show me a study and where that study was done and how much time those people had performing the visuospatial activity. While I don't think there's a conspiracy going on, there's no doubt Marmar makes a point in calling your statements absurd because they are.