High School Is There a Cosmological Model That Considers All Possible Laws of Physics?

Click For Summary
The discussion centers on the possibility of a cosmological model that encompasses all potential laws of physics, akin to the No Boundary model proposed by Hawking and Hartle. It questions whether any existing theories extend beyond compact Euclidean metrics to include a broader range of physical laws. However, the consensus is that the phrase "sum over all possible laws" lacks substantive meaning and does not correspond to a viable theoretical framework. Ultimately, no such comprehensive model has been established in cosmology. The thread concludes with a definitive stance against the existence of such a theory.
Suekdccia
Messages
352
Reaction score
30
TL;DR
Is it there any model or theory (related to cosmology) that postulates a sum over all possible laws of physics?
Hawking and Hartle proposed a well-known model which postulated a sum over all possible histories considering all compact euclidean metrics to explain the origin of the universe (this is called the No Boundary model).

I was wondering whether there is any model or theory (related to cosmology) that postulates a sum over all possible histories of the universe with all possible laws of physics? I mean, any model similar to the No Boundary proposal by Hawking and Hartle but not only considering all the possible laws from all compact Euclidean metrics, but considering all the possible laws of physics that we could model or think of?
 
Physics news on Phys.org
Suekdccia said:
Summary:: Is it there any model or theory (related to cosmology) that postulates a sum over all possible laws of physics?
No. The words "sum over all possible laws" is just a way of stringing words together without meaning.

This thread is closed.
 
  • Like
Likes Vanadium 50
"Supernovae evidence for foundational change to cosmological models" https://arxiv.org/pdf/2412.15143 The paper claims: We compare the standard homogeneous cosmological model, i.e., spatially flat ΛCDM, and the timescape cosmology which invokes backreaction of inhomogeneities. Timescape, while statistically homogeneous and isotropic, departs from average Friedmann-Lemaître-Robertson-Walker evolution, and replaces dark energy by kinetic gravitational energy and its gradients, in explaining...

Similar threads

  • · Replies 7 ·
Replies
7
Views
5K
  • · Replies 1 ·
Replies
1
Views
933
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 62 ·
3
Replies
62
Views
11K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 0 ·
Replies
0
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K