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some point out of light range of d on this infinite graph it gives a value for density although light didn't reach there yet.
Quote from: OPsome point out of light range of d on this infinite graph it gives a value for density although light didn't reach there yet. I think you are grasping for the concept of "light cones"? (...although it also applies to gravitational waves, as they also travel at c.)
even though light beyond its range equals zero,