Everything Energy? My Thoughts on the Question

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SUMMARY

The discussion centers on the philosophical and scientific interpretation of energy, specifically whether a system can possess energy or if it fundamentally is energy. Participants emphasize that while every system has an associated quantity of energy, this does not equate to the system being energy itself. The conversation highlights the complexity and vagueness surrounding the definition of energy, referencing kinetic energy as a specific example. The notion that "everything is energy" is critiqued as an oversimplification of a more intricate reality.

PREREQUISITES
  • Understanding of basic physics concepts, particularly energy types like kinetic energy.
  • Familiarity with philosophical discussions surrounding scientific definitions.
  • Knowledge of systems theory and its application in physics.
  • Ability to analyze and interpret scientific literature, such as the Feynman Lectures.
NEXT STEPS
  • Read the introduction to the Feynman Lectures on Physics, specifically Volume I, Chapter 4.
  • Explore the concept of energy in thermodynamics and its various forms.
  • Investigate the philosophical implications of energy as a fundamental concept in physics.
  • Examine the principles of systems theory and how they relate to energy definitions.
USEFUL FOR

Students of physics, philosophers of science, and anyone interested in the foundational concepts of energy and its implications in both scientific and philosophical contexts.

Lisastronomy
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I wondered about this question. According to me, there 2 ways you can look at it. A system can have energy, or a system is energy. Next to that, the idea of energy, the definition of energy seems a bit vague to me. There are so many types of energy, but what is it really? A system can have energy, like kinetic energy, but aren't in some sense all the particles also energy, and in the end is not everything energy? What are your thoughts on this?
 
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Lisastronomy said:
A system can have energy
Correct.
Lisastronomy said:
, or a system is energy.
Energy is a quantity associated with a system. Every system has a quantity of energy associated with it, but that doesn't mean that a system is energy. Any more than objects are colour.

Lisastronomy said:
Next to that, the idea of energy, the definition of energy seems a bit vague to me. There are so many types of energy, but what is it really? A system can have energy, like kinetic energy, but aren't in some sense all the particles also energy, and in the end is not everything energy? What are your thoughts on this?
You could try reading at least the introduction here:

https://www.feynmanlectures.caltech.edu/I_04.html

Or, slightly more off the wall:

 
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Lisastronomy said:
What are your thoughts on this?

It is not about what our thoughts are, it is about what is the well established and well tested understanding. There is really no need to break open door.
 
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Lisastronomy said:
What are your thoughts on this?
It is a bit paradoxical, but the very point of the 'great unifications' is to make an account for all the differences.
The 'everything is energy' is just a thin layer of paint meant to make it look all the same.
 

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