How can it be deduced general relativity from planck length

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Discussion Overview

The discussion revolves around the question of how general relativity can be deduced from the concept of Planck length. Participants explore the relationship between classical theories of gravity and quantum scale physics, while addressing the clarity and meaning of the original question.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants argue that the question does not make sense, comparing Planck length to arbitrary units of measurement like meters or feet.
  • Others suggest that the question may be interpreted as asking how classical general relativity can emerge from quantum physics at the Planck scale.
  • One participant acknowledges that while the question is unconventional, it is not meaningless and invites further clarification.
  • A later reply references a paper discussing the connection between gravity and the uncertainty principle, suggesting a potential link between the two concepts.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the clarity or validity of the original question, with multiple competing views on its meaning and relevance remaining unresolved.

Contextual Notes

The discussion highlights limitations in the formulation of the question and the assumptions underlying the relationship between quantum mechanics and general relativity, but these remain unresolved.

Garrulo
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How can it be deduced general relativity from Planck length?
 
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Garrulo said:
How can it be deduced general relativity from Planck length?
Question doesn't make sense. Plank length is just an arbitrary length. That's like asking how can we deduce GR from the meter or the foot or the mile.
 
Do you mean how can the classical theory of general relativity be deduced from quantum Plank scale physics?
 
The question is certainly drastically condensed but it is not meaningless; it is just unconventional and unpublished.
 
Blackforest said:
The question is certainly drastically condensed but it is not meaningless; it is just unconventional and unpublished.
Can you then restate it so it makes sense and is meaningful?
 
phinds said:
Can you then restate it so it makes sense and is meaningful?
Blackforest has PM'd me indicating that his answer would not be within the forum rules so I still have no information that would lead me to believe that the OP's question makes any sense. Garrolu, can you clarify your question?
 
Garrulo said:
How can it be deduced general relativity from Planck length?
In some way parented with your approximate formulation you may eventually appreciate the discussion exposed here:
[arxiv:gr-qc/9904026v2, 14 April 1999] "On gravity and the uncertainty principle".
I hope you enjoy it and perceive the strong logical correlation between the correct utilization of the Heisenberg's uncertainty principle and the possibility to get a connection with the theory of relativity.
 

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