[whatshisface]

Well, if you're looking for someone who can tell you how to do electrical engineering without being able to visualize a circle, you'll have to find someone with less imagination than me. I can do a circle, it's the "using your mind's eye as scratch paper for doing integrals" bit that's beyond my highly average abilities.

As for higher dimensions, yes, when you can barely visualize R3, R4 doesn't seem much harder, but that's hardly a superpower, it's just a pair of equal inabilities. I find it easy to accept the principles of noneuclidian geometry, but that comes with the side effect that if I was told they applied to euclidian space, that'd come "naturally" too.