Space Finite: Flat/Open Universe Possibilities

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The discussion explores the implications of a flat or open universe regarding its finiteness and the nature of space. Generally, a flat or hyperbolic universe is considered infinite and unbounded, while a closed universe is finite but can still be unbounded. Evidence from cosmic microwave background data suggests that the universe appears flat but may also be finite in size, leading to models like a football-shaped universe with repeating patterns. The concept of an infinite universe implies an infinite amount of matter, though the observable universe remains finite due to the limits of visibility defined by the Hubble volume. The conversation also touches on Olbers' Paradox, which challenges the idea of an infinite universe by questioning the assumptions of its age, size, and static nature.
  • #31
turbo-1 said:
...The fact that he did not successfully predict the frequency distribution (due to absorption and re-radiation at lower and lower frequencies) does not diminish the acheivement of accurately predicting the magnitude of the signal.
Producing the 'right' answer for the wrong reasons is more often called astrology than science.
 
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