All physics laws in one equation, which?

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Discussion Overview

The discussion revolves around the idea of unifying all laws of physics into a single equation, as mentioned in a video by Neil. Participants explore various formulas and concepts that could represent this unification, including references to Feynman's ideas and the Lagrangian formulation of physics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether the equation e=mc^2 could be the formula that simplifies all laws of physics.
  • Another participant references Feynman's assertion that U = 0, suggesting a deeper exploration of what U represents.
  • There is mention of Turok's perspective on the Lagrangian of the standard model combined with general relativity as an effective quantum field theory.
  • A later reply discusses the absence of an equal sign in certain modern formulations of physics, particularly in the context of unifying electricity and magnetism, indicating a complexity in how physical laws are represented mathematically.

Areas of Agreement / Disagreement

Participants express differing views on what the unifying equation could be, with no consensus reached on a specific formula. The discussion includes various interpretations and challenges regarding the concepts presented.

Contextual Notes

Participants highlight the need for clarity on the definitions and implications of terms like U, as well as the limitations of current mathematical representations in unifying physical laws.

eveo
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around 3:00 minutes into the video neil says that all the laws of physics can be simplified into one formula, which formula is this? is it e=mc^2?

the video
 
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atyy said:
According to Feynman,

U = 0

:smile:
What is U? :smile:
 
What is U?
That's what we have to learn yet :).
 
atyy said:
According to Feynman,

U = 0

:smile:

How is it Feynman failed to eliminate the equal sign. :eek:

In unifying electricity and magnetism in a modern way you might declare that A is a vector field on spacetime. Various terms expressed as derivatives of A are associated with physically measurable or measurably inferred quantities. There is no governing equal sign in this instance. This is not to say that there are none to be had. Conservation laws show up as mathematical identities.
 
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