Observational evidence for bottom-up structure formation

AI Thread Summary
The discussion centers on the need for observational evidence of bottom-up structure formation in the universe beyond the cosmic microwave background (CMB) radiation. It questions whether telescopes have identified regions post-reionization where galaxy clusters or superclusters had not yet formed, and if such findings were overlooked or underreported. Participants clarify that existing observations, including those from radio telescopes, support the idea that the universe is interconnected by vast filaments, which facilitate the formation of stars and galaxies. The conversation emphasizes the importance of identifying direct evidence of bottom-up structure formation over time. Overall, the need for more comprehensive reporting on these observations is highlighted.
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I know that the only dark matter models consistant with the cosmic microwave background radiation require bottom-up structure formation, but all of the relevant press releases I've read are about finding surprisingly large/mature structures in the early universe. Do the same telescopes/experiments also find many places after reionization where galaxy clusters or superclusters clearly hadn't formed yet, but decided they weren't worth reporting about (or they reported them and I didn't find those reports)? Also, what observations do we have of bottom-up structure formation actually occurring over time, rather than observations of the CMB or modern universe that just constrain current models?
 
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Please correct me if I'm wrong, but isn't radio telescopy discovering that the universe is spanned by vast filaments, which then create the stars and galaxies at the intersections?

Respectfully,
Steve
 
According to http://en.wikipedia.org/wiki/Structure_formation , that did happen, but those filaments formed bottom-up as the first stars and galaxies were pulled towards each other.

Sorry if I made the question sound more complicated than it was; I guess a simpler way of asking it is what evidence do we have of bottom-up structure formation other than the cosmic microwave background radiation.
 

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