A What is the origin of the Dipole Repeller and similar structures?

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The discussion explores the concept of the Dipole Repeller and similar structures, questioning how slight density unevenness in the early universe could lead to regions of lower density. Participants express skepticism about the existence of focal areas with lower density, suggesting that gravity would typically cause matter to cluster in higher density regions. The conversation emphasizes the challenge of visualizing mechanisms that could create these lower density areas. The inquiry into the existence of such regions in the universe remains central to the discussion. Understanding these structures is crucial for comprehending cosmic evolution and the distribution of matter in the universe.
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how can lower density cosmic structures occur?
I can see how slight unevenness in density of the early universe could result in matter grouping due to gravity however I would think that this would lead to more focal regions of higher density and more disperse regions of lower density. I can't visualise a mechanism that would support development of focal regions of lower density.
 
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brianmck said:
focal regions of lower density.
What makes you think such regions exist in our universe?
 

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