Limitations on cosmology for observers restricted to Earth

  • Context: Graduate 
  • Thread starter Thread starter Loren Booda
  • Start date Start date
  • Tags Tags
    Cosmology Earth
Click For Summary

Discussion Overview

The discussion explores how cosmology might change with the ability to escape Earth, the solar system, or the galaxy. It raises questions about social or genetic evolution for space travel, the validity of the cosmological principle, potential discoveries in interstellar space, and the implications for our understanding of extraterrestrial life.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants question how our cosmological understanding would change with the ability to escape our planet and explore beyond our solar system or galaxy.
  • There is speculation about whether social or genetic evolution would be necessary for extended space travel.
  • Some propose that the cosmological principle may still hold, while others suggest that new entities could emerge in interstellar and intergalactic space.
  • One participant raises the possibility of discovering theoretical phenomena that could alter our understanding of the universe.
  • Concerns are expressed about the potential for anomalies in stellar parallax in interstellar space, which could challenge existing assumptions about the universe's size.
  • Another participant suggests that diffraction may affect the interpretation of Hubble deep field images, potentially skewing the count of luminous matter.
  • There is a question about whether the interaction between observers and the cosmos imposes limitations on the experience of physics itself.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the implications of escaping Earth for cosmology, and the discussion remains unresolved with no consensus on the points raised.

Contextual Notes

Limitations include the speculative nature of claims about social or genetic evolution, the dependence on definitions of the cosmological principle, and unresolved questions regarding the impact of diffraction on astronomical observations.

Loren Booda
Messages
3,115
Reaction score
4
How would our cosmology change once we have the ability to significantly escape our planet, our solar system, or our galaxy? Must we evolve socially or genetically to realize extended space travel? Might we first attain the ability to transform virtually through the cosmos?

Would the cosmological principle (that the universe is approximately isotropic and homogeneous) still stand? Would interstellar and intergalactic space yield new entities? What currently theoretical phenomena are likely to be discovered? At what point would you estimate that we might find extraterrestrial life, intelligent or otherwise?

In brief, will our comprehensive, large scale view upon the universe modify radically due to our displaced relative perspective within it?
 
Space news on Phys.org
Loren Booda said:
How would our cosmology change once we have the ability to significantly escape our planet, our solar system, or our galaxy? Must we evolve socially or genetically to realize extended space travel? Might we first attain the ability to transform virtually through the cosmos?

Would the cosmological principle (that the universe is approximately isotropic and homogeneous) still stand? Would interstellar and intergalactic space yield new entities? What currently theoretical phenomena are likely to be discovered? At what point would you estimate that we might find extraterrestrial life, intelligent or otherwise?

In brief, will our comprehensive, large scale view upon the universe modify radically due to our displaced relative perspective within it?

Given the discoveries within our own solarsystem showing the ignorance which many base their assumptions on, I'd say the probability of anomalies in stellar parallax in interstellar space is quite high. One could go even as far to say it would vastly reduce the estimated size of the universe.

Maybe our view of the "above" is similar to a turtle's:
http://www.courtneyplatt.com/underwater/underwimagepages/image11.htm
 
Last edited by a moderator:
Perhaps due to such diffraction much of the Hubble deep field images is repetitious or exclusionary, affecting the count of luminous matter.
 
The question could be asked whether observers, the cosmos, or both interacting together impose limitations on experiencing physics itself.
 

Similar threads

Undergrad 3 questions about a paper on density fluctuations in the Universe
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Density fluctuations in a homogeneous linearly expanding universe?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate The Cosmological Principle means infinite Observable Universes
  • · Replies 17 ·
Replies
17
Views
3K
Graduate Some questions on the Cosmological Principle
  • · Replies 50 ·
2
Replies
50
Views
6K
Undergrad Is There a Preferred Axis in Cosmology and What Could Be Its Origin?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Discussion of "Two-Time Physics" (I. Bars) and its potential cosmological implications
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Event Horizons = Cosmological Horizons?
  • · Replies 19 ·
Replies
19
Views
6K
Graduate Anisotropic Universe and Friedmann Equations
  • · Replies 27 ·
Replies
27
Views
5K
Undergrad What Key Issues Should Cosmologists Address in the ΛCDM Model?
  • · Replies 1 ·
Replies
1
Views
3K
High School The infinite and the infinitesimal
  • · Replies 10 ·
Replies
10
Views
3K