Spatial thinkers see spatial questions that others don't

Spatial thinkers see questions that others don't. People with high spatial or 3D intelligence naturally grasp a mental model of 3D objects and places (ex. engines, terrain, sculptures, sports maneuvers) and therefore spatial questions naturally occur to them.

Case in point: in my Physical Geography class we were talking about how the path of a missile appears on a map due to the Coriolis force, which causes long-distance flying objects and winds to appear to turn right in the northern hemisphere and left in the southern hemisphere. While a good chunk of the class was having trouble even seeing what the Coriolis force was (which admittedly is challenging for just about anyone because two motions are at work simultaneously, the missile and the earth), one guy asked how the path of the missile would change as it crossed the equator, since on one side missiles turn right whereas on other they turn left. The question occured to him because he had a solid grasp in his mind of the basic Coriolis effect in space, so that a further question popped out. However, for those who could not see the spatial dimensions in their mind in the first place this question would never occur to them, any more than, as Aristotle said, a blind man would talk about colors.

Einstein said he woud do visual experiments in his head rather than in a lab. This is how spatial 3D thinking works: because you can visualize things and hold the 3D model, you can then think about it and try things out to see what happens.

This idea is not rocket science; it applies to any intelligence. Musical people will see more musical questions, people high in linguistic intelligence will notice things about language that others don't. However, the basic truth is overlooked. If you notice that someone notices lots of questions about a certain field, they are likely high in the intelligence used in that field.