Godel's rotating universe theory

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Discussion Overview

The discussion centers around Kurt Gödel's rotating universe theory, specifically its implications within the framework of the Einstein Field Equations. Participants explore the nature of closed timelike curves and the concept of time travel within this theoretical model.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants describe Gödel's rotating universe as a solution to the Einstein Field Equations that includes closed timelike curves, allowing for the possibility of time travel to the past.
  • One participant challenges the terminology of "rotating," suggesting that it may be more accurate to refer to it as a circular or closed time loop rather than implying a rotation around a fixed axis.
  • Another participant proposes that the term "rotating" could refer to the rotation of space itself.
  • A participant inquires about the implications of time travel in this universe, specifically whether one could see oneself in the past, and seeks clarification on the concept of the "Compass of the Inertia" mentioned in Gödel's original article.

Areas of Agreement / Disagreement

Participants express differing views on the terminology used to describe Gödel's universe, particularly regarding the concept of rotation. The discussion remains unresolved regarding the implications of time travel and the specifics of Gödel's original work.

Contextual Notes

There are limitations in the discussion regarding the definitions of terms like "rotating" and "closed timelike curves," as well as the implications of time travel, which remain unclear and are subject to interpretation.

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can someone please explain to me this theory of kurt godel?

thanks.
 
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"Godel's rotating universe", also called "Godel's Universe",
is a solution that godel found in 1949 to the Einstein Field Equations
In this universe, the metric is unphysical, because there exist something called closed timelike curves.
If you enter in some of these timelike curves, you can return to the past.
 
Originally posted by meteor
"Godel's rotating universe", also called "Godel's Universe",
is a solution that godel found in 1949 to the Einstein Field Equations
In this universe, the metric is unphysical, because there exist something called closed timelike curves.
If you enter in some of these timelike curves, you can return to the past.

I would not call that 'rotating' but merely a circular or closed time loop instead.
Rotating seems to mean that the universe itself rotates around some fix axis, which is probably not what is being meant.
 
I think it meant rptating space.
 
IF YOU CAN TRAVEL IN THIS UNIVERSE BACK IN TIME CAN YOU SEE YOURSELF IN THE PAST ?
Does anyone know what is the Compass of the Inertia ? It is in the Godel's article .
"An Example of a New Type of Cosmological Solutions of Einstein's Field Equations of Gravitation",Reviews of Modern Physics vol: 21 July,1949 Pages:447-450
Many Thanks
HGW
 

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