Why is it so hard to imagine 4D objects
In: Mathematics
Because we see the world mostly in 2D. We infer 3D from context and to a minor degree by stereoscopic vision (seeing slightly different images from our two eyes lets us determine how far things are). 4D objects require us to really SEE 3D- to know what’s inside a closed box just by looking at it. To see the form of an object and not just its exterior. This is tough to wrap our minds around.
Try reading FLATLAND by Edwin A. Abbott for the classic book trying to understand dimensions
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