Related to your idea,

- modified gravity (MOND), which accurately models the centripetal acceleration of stars in hundreds of galaxies, models acceleration as sqrt(GM/R^2 * cH/(2pi))

- cH/(2pi) = c^2 / (2pi * 13.8 bly), which looks like some super extreme v^2/r centripetal acceleration

- like something moving at c, from a point 2pi * 13.8 bly away = 87 bly away

- maybe if ones goes straight for 87 bly, one ends up at the "same point" in abstract space

- maybe the universe has the shape of a hypersphere. maybe the radius of the hypersphere is 13.8 bly.