I'd think the construct of "The shape of something where all points that are x distance away from a certain point" is something that would be universal. (Thinki

I'd think the construct of "The shape of something where all points that are x distance away from a certain point" is something that would be universal. (Thinking of spheres rather than circles.) AFAIK pi crops up in any dimensionality in any type of space for spheres.