Starship Asterisk*

Nukeit wrote: ↑Tue Nov 02, 2021 5:00 pm
Resembles a neurolink or even possibly mycorrhiza.

"to be belittled" at best.

zendae1 wrote: ↑Mon Nov 01, 2021 12:25 am I tried viewing it 3D in case there was a teapot but it was turtles.

"Turtles all the way down" is an expression of the problem of infinite regress. The saying alludes to the mythological idea of a World Turtle that supports a flat Earth on its back. It suggests that this turtle rests on the back of an even larger turtle, which itself is part of a column of increasingly large turtles that continues indefinitely.

The exact origin of the phrase is uncertain. In the form "rocks all the way down", the saying appears as early as 1838.[1] References to the saying's mythological antecedents, the World Turtle and its counterpart the World Elephant, were made by a number of authors in the 17th and 18th centuries.[2][3]

https://en.wikipedia.org/wiki/Cold_dark_matter wrote:
<<In the cold dark matter theory, structure grows hierarchically, with small objects collapsing under their self-gravity first and merging in a continuous hierarchy to form larger and more massive objects. Predictions of the cold dark matter paradigm are in general agreement with observations of cosmological large-scale structure.

In the hot dark matter paradigm, popular in the early 1980s and less so now, structure does not form hierarchically (bottom-up), but forms by fragmentation (top-down), with the largest superclusters forming first in flat pancake-like sheets and subsequently fragmenting into smaller pieces like our galaxy the Milky Way.

Since the late 1980s or 1990s, most cosmologists favor the cold dark matter theory (specifically the modern Lambda-CDM model) as a description of how the universe went from a smooth initial state at early times (as shown by the cosmic microwave background radiation) to the lumpy distribution of galaxies and their clusters we see today—the large-scale structure of the universe. Dwarf galaxies are crucial to this theory, having been created by small-scale density fluctuations in the early universe; they have now become natural building blocks that form larger structures.
..................................................
Several discrepancies between the predictions of the particle cold dark matter paradigm and observations of galaxies and their clustering have arisen:

• The cuspy halo problem: The density distributions of dark matter halos in cold dark matter simulations (at least those that do not include the impact of baryonic feedback) are much more peaked than what is observed in galaxies by investigating their rotation curves.
  
  The missing satellites problem: Cold dark matter simulations predict large numbers of small dark matter halos, more numerous than the number of small dwarf galaxies that are observed around galaxies like the Milky Way.
  
  The disk of satellites problem: Dwarf galaxies around the Milky Way and Andromeda galaxies are observed to be orbiting in thin, planar structures whereas the simulations predict that they should be distributed randomly about their parent galaxies.
  
  Galaxy morphology problem: If galaxies grew hierarchically, then massive galaxies required many mergers. Major mergers inevitably create a classical bulge. On the contrary, about 80% of observed galaxies give evidence of no such bulges, and giant pure-disc galaxies are commonplace. That bulgeless fraction was nearly constant for 8 billion years.

Some of these problems have proposed solutions, but it remains unclear whether they can be solved without abandoning the CDM paradigm.>>

ta152h0 wrote: ↑Sun Oct 31, 2021 3:15 pm Does that mean the Universe will never collapse? pass the ice cold one

Ann wrote: ↑Sun Oct 31, 2021 6:22 am 4) It's dark because there is not an infinite number of stars in the Universe. Come on, people. What makes anyone think that there are so many stars in the Universe that there is not a single point along any arbitrary line of sight in the Universe that wouldn't eventually "hit a star"?