What ever happened to Scale Relativity?

  • Context: Graduate 
  • Thread starter Thread starter Saltlick
  • Start date Start date
  • Tags Tags
    Relativity Scale
Click For Summary

Discussion Overview

The discussion revolves around Laurent Nottale's Scale Relativity theory, exploring its current status, criticisms, and implications in the context of fractal spacetime structures and its relationship to other theories in physics. Participants express curiosity about the theory's reception, its criticisms, and its foundational principles, while also discussing broader questions related to action principles and differentiability in physics.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants note that references to Scale Relativity after the late 90s are scarce, raising questions about whether the theory was abandoned or disproved.
  • Concerns are expressed about Nottale's credibility and his ability to attract collaborators, with claims that he has not adequately addressed criticisms from the scientific community.
  • Participants inquire about specific criticisms of Scale Relativity, particularly regarding its mathematical rigor and the treatment of differentiability in relation to geodesics.
  • There is mention of Nottale's ambitious claims and the potential disconnect between his work and the broader scientific community's acceptance.
  • Some participants express interest in understanding the foundational principles of Scale Relativity, particularly in relation to quantum mechanics.
  • Questions are raised about the meaning of action in physics and whether fundamental measures can be constructed on non-differentiable manifolds, with suggestions that fractal structures and non-commutative geometry might provide insights.

Areas of Agreement / Disagreement

Participants generally express skepticism about the current status and rigor of Scale Relativity, with multiple competing views on its validity and the adequacy of its foundational principles. The discussion remains unresolved regarding the theory's acceptance and the implications of its criticisms.

Contextual Notes

Participants highlight limitations in the existing literature on Scale Relativity, including a lack of discussion on criticisms and experimental flaws. There are also unresolved questions regarding the mathematical formulation of the theory and its connection to established principles in physics.

Who May Find This Useful

This discussion may be of interest to those exploring alternative theories of relativity, the foundations of quantum mechanics, and the interplay between mathematical rigor and physical theories in the context of fractal spacetime structures.

  • #31
I can only comment on my own posts.

My apologees if I have violated any rules on here!

From my perspective I was making a from my view non-random association between what might be the "scaling" Nottale talkes about, and the scaling of complexity that I think in terms of. I basically consider a microstructure (complexion) and I associate the scale to the complexion number or the number of distiniguishable microstates. Nottale seems to consider the scale a parameter in identifiying the observer (reference frame). This is also how I think of it. The observer has a complexion number too. Why I think so is more a philosophical and interpretational question.

How does whatever construction of science we choose, scale as the observational scale does? As I see it the problem is that this scaling adds or removes information. This is where I think evolution comes in. Maybe there is no old-style one-2-one transformation that connects the scales? that might suggest that the "nature of law" is different that we thought in the past.

Initially I agree it's apples and oranges, but since I am looking for hints to my own quest, I was probing wether Nottales apples can be seen as peeled oranges :bugeye:

It's associative, but I thought that we were reflecting over Nottales ideas here, and I have no choice but to reflect from my personal perspective (which defines my context), and I always try to restrain myself and to only post reflections that relate to current thinking, but I try to at least some small element of personal reasoning that adds a new perspective, otherwise my posts would be totally redundant?

/Fredrik
 
Physics news on Phys.org
  • #32
I sympathize with your argument, humanino, but, renomalization is not 100% sound either. It is more an effective theory. I think we are missing something more fundamental. Nottale is not quite right, but, maybe closer than we suspect.
 
  • #33
Chronos said:
but, renomalization is not 100% sound either. It is more an effective theory.

I agree.

I expect that when there will be a deeper understanding of the foundations of physical theory the notion of renormalization will be understood in a much deeper way and probably come more naturally and be treated at some level on the same footing as other interactions.

/Fredrik
 
  • #34
Fra said:
interactions.
renormalization is not an interaction...
Chronos said:
It is more an effective theory.
Renormalisation itself is not what we call "effective theory". Ironically, you get effective theories once you have integrated out short distance stuff, so it does not matter whether an effective theory is renormalizable or not.

You seem to repeat 50 years old words from Dirac and/or Feynman as if they were still considered true. The effective mass assigned to an electron in a lattice, or to a ball underwater, those are the same processes as renormalization in QFT.
 
  • #35
humanino said:
renormalization is not an interaction

I know that, but when I pick on that it also means I pick on QFT as a formalism. Noone will deny it's success, but neither can anyone prove it's a fundamentally right formalism. It's somehow a formalism for how to ask questions, which constrains the possible answers. Due to the problems QFT had originally, renormalisation was developed. Perhaps first as a fix, where many people had doubts. But now it more accepted. But somehow QFT needs renormalisation to make sense. So the theory or technique of renormalization seems to be pretty much entangled up on the QFT.

I'm one of those oddballs that think that more efficient progress will come with a new formalism and new logic.

/Fredrik
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 21 ·
Replies
21
Views
6K
  • · Replies 62 ·
3
Replies
62
Views
11K
  • · Replies 17 ·
Replies
17
Views
7K
  • · Replies 27 ·
Replies
27
Views
15K
  • · Replies 12 ·
Replies
12
Views
5K
  • · Replies 20 ·
Replies
20
Views
5K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K