I love this kind of thing. I often wonder how densities would map under such a transformation. What would the density be of the "core" of the inside out earth?

I love this kind of thing. I often wonder how densities would map under such a transformation. What would the density be of the "core" of the inside out earth? What is the density of the universe sphere-reflected about the geospheric surface of the earth? How does this change as you reflect about different layers of the earth? How about sphere reflecting the universe about the surface of a star? Or a black hole? If anyone is curious, I made some experiments years ago to play with this kind of perspective shifts. Make sure you check out the horse: https://hyperspectives.wondering.xyz https://hyperspectives.wondering.xyz I also made a blender modifier that does Moebius transformations... There is a patch on the hyperspectives page. But also this fork: https://github.com/micahscopes/Hyperspectives/tree/hyperblender https://github.com/micahscopes/Hyperspectives/tree/hyperblen... Lately I've gotten into using Clifford algebra (conformal geometric algebra) to do the same stuff. I'm slowly building tools for this... Stay tuned!