Do circles exist, or are they just spirals? In space, they’re all spiral galaxies - the only sphere is the observable universe based on the speed of light in ev

Do circles exist, or are they just spirals? In space, they’re all spiral galaxies - the only sphere is the observable universe based on the speed of light in every direction. Also see: https://en.wikipedia.org/wiki/Apollonian_gasket https://en.wikipedia.org/wiki/Apollonian_gasket Computer screens can only display the 65535-gon, not even the 65536 or 65537-gon.