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## Main Question or Discussion Point

Dear Cosmology People,

Einstein added just enough ad hoc dust to a universe with hyperspherical topology and positive spatial curvature to bring about stasis. Is a similar thing possible with a pseudohyperspherical universe with negative curvature, something opposite of dust, that would have some exact value to attain stasis?

Einstein added just enough ad hoc dust to a universe with hyperspherical topology and positive spatial curvature to bring about stasis. Is a similar thing possible with a pseudohyperspherical universe with negative curvature, something opposite of dust, that would have some exact value to attain stasis?