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cygx t1_jc85w7p wrote

Reply to comment by Aseyhe in Does space expansion occur uniformly in all directions and dimensions? by Tank_AT

> The tendency to expand due to the stretching of space is nonexistent, not merely negligible.

Note that this claim is at odds with one of the papers that is cited in support (ref. 19 specifically). The final sentence of arXiv:astro-ph/9803097 reads:

> As a conclusion, it is reasonable to assume that the expansion of the universe affects all scales, but the magnitude of the effect is essentially negligible for local systems, even at the scale of galactic clusters.

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Aseyhe t1_jc87l2x wrote

Odd, I'm not sure why they cite that there. But the error made in the Cooperstock et al. article is pretty elementary, in any event. By starting with the FLRW metric for an Einstein-de Sitter universe, they assume from the outset that matter is homogeneously distributed everywhere at the critical density. The force that they claim arises from the expansion of the universe is really just the gravitational influence of this matter.

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