Godel's theorem, Hawking and GUT

  • Context: Graduate 
  • Thread starter Thread starter dpa
  • Start date Start date
  • Tags Tags
    Gut Hawking Theorem
Click For Summary

Discussion Overview

The discussion revolves around the implications of Gödel's Theorem in the context of physics, particularly regarding the existence of a Theory of Everything (ToE) and a Grand Unified Theory (GUT). Participants explore whether the conclusions drawn from Gödel's Theorem suggest that a single GUT cannot exist, and they examine the relationship between GUT and ToE.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants propose that Gödel's Theorem implies a single ToE does not exist, which raises questions about the existence of a single GUT.
  • Others argue that a ToE can exist, but we may not be able to construct a proof for it.
  • There is a request for references to support claims about Hawking's extension of Gödel's Theorem to physics, with some participants expressing skepticism about the original claim.
  • One participant doubts the feasibility of finding a GUT without first establishing a ToE and questions the energies required to test a GUT.
  • Another participant notes that Gödel's incompleteness theorem does not apply to the goal of physics, which is not to find every true mathematical statement.
  • There is a historical reference to Lord Kelvin's assertion that physics was nearly complete, which did not account for subsequent developments in quantum mechanics and general relativity.

Areas of Agreement / Disagreement

Participants express differing views on the implications of Gödel's Theorem for ToE and GUT, with no consensus reached on whether a single GUT can exist or the validity of the claims made about Hawking's interpretation.

Contextual Notes

Some claims rely on interpretations of Gödel's Theorem and its application to physical theories, which may depend on specific definitions and assumptions that are not fully articulated in the discussion.

dpa
Messages
146
Reaction score
0
Hi all,
:smile:

Stephen Hawking extended the Godel's Theorem to physics and hence expressed that single TOE does not exist.
So, :shy: does that mean that single GUT cannot exist as well? I guess not, in a sense that GUT might not necessarily mean TOE.

I just want opinions.

Sincerely
DPA
 
Physics news on Phys.org
strange;

I would say that a ToE can exist, but that we are not able to construct a proof
 
dpa said:
Stephen Hawking extended the Godel's Theorem to physics.
Can you provide a reference or link for that claim?
 
Demystifier said:
Can you provide a reference or link for that claim?

Of course, post number 1 is where that claim was made.
 
martinbn said:
Of course, post number 1 is where that claim was made.
Sure, but I want to see what EXACTLY Hawking said in HIS own words. Because in the form dpa expressed it sounds as something said by a crackpot.
 
Demystifier said:
Sure, but I want to see what EXACTLY Hawking said in HIS own words. Because in the form dpa expressed it sounds as something said by a crackpot.

Yes, that's why i was joking that the first to make that claim was him.
 
check this. I might have got it wrong. Help me.

damtp.cam.ac.uk/events/strings02/dirac/hawking/
 
dpa said:
Hi all,
:smile:

Stephen Hawking extended the Godel's Theorem to physics and hence expressed that single TOE does not exist.
So, :shy: does that mean that single GUT cannot exist as well? I guess not, in a sense that GUT might not necessarily mean TOE.

I just want opinions.

Sincerely
DPA

I doubt we're going to find a GUT until we do find a TOE. Is it even humanly possible to generate the energies needed to test a GUT?

Obviously, the goal of physics is not to find every mathematical statement that's true. So Godel's incompleteness theorem does not apply.
 
dpa said:
damtp.cam.ac.uk/events/strings02/dirac/hawking/
Yes, that's it. It is nice to see that Hawking is not a crackpot. :smile:
Namely, he does not EXTEND the Godel's theorem, but merely uses it as an analogy illustrating the (certainly not new) idea that the final physical theory of everything might not exist.
 
  • #10
ah sorry
my word was misleading.
 
  • #11
What does a theory of everything even mean?

I recall reading that Lord Kelvin said at the start of the 1900's that the field of physics is done, i.e nearly completed to describe every natural phenomena. He didn't account for the two revolutions that followed, QM and GR.
 

Similar threads

  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 57 ·
2
Replies
57
Views
14K
  • · Replies 14 ·
Replies
14
Views
3K
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 21 ·
Replies
21
Views
7K