Infinity -just maths or any physical existence?

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SUMMARY

The forum discussion centers on the concept of infinity, questioning its physical existence versus its role as a mathematical construct. Participants highlight that while mathematical infinities, such as those found in black hole singularities and the van Hove singularity in phonon density of states, are well-established, their physical manifestations remain contentious. The distinction between potential and actual infinities, as discussed by Aristotle, is also emphasized, suggesting that infinity may not have a direct physical counterpart. Ultimately, the conversation concludes that while models may incorporate infinities, the true nature of infinity in the physical realm is still unresolved.

PREREQUISITES
  • Understanding of mathematical concepts related to infinity, including potential and actual infinities.
  • Familiarity with black hole physics and singularities.
  • Knowledge of quantum mechanics, particularly the van Hove singularity and its implications in material properties.
  • Basic grasp of the philosophical implications of mathematical constructs in physical theories.
NEXT STEPS
  • Research the implications of black hole singularities in modern physics.
  • Explore the van Hove singularity and its effects on superconductivity.
  • Study Aristotle's distinctions between potential and actual infinities in philosophical contexts.
  • Investigate the role of infinities in quantum field theory and their mathematical representations.
USEFUL FOR

Physicists, mathematicians, philosophers, and anyone interested in the intersection of mathematics and physical reality, particularly in the context of infinity and its implications in theoretical frameworks.

  • #31
arildno said:
Well.
Isn't it a distinction between a) finding results compatible with an existing singularity, and indeed derivable from regarding it as existent and b) To show the singularity's existence?

TrickyDicky said:
Yes, and it's a clear distinction in science.
Really? Please explain how science can "show the existence" of anything whatever, except by "finding results that are compatible with its existence".

The map is not the territory.
 
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  • #32
AlephZero said:
Really? Please explain how science can "show the existence" of anything whatever, except by "finding results that are compatible with its existence".

The map is not the territory.

This reminds me on Copenhagen's school. How can I know that results of the data prove that you (or anyone else) exist behind the computer...
We all know we all exist, but according to Copenhagen's school this is not the case because I'm not observing you and you're not observing-so how can you know I exist behind your computer, and how can I know that you exist behind my computer.
Obviously there is something wrong with this hypothesis, or it needs to be extended, because despite all the experiments show, Moon (and everything else) does exist even when none is observing it.
 
  • #33
AlephZero said:
Really? Please explain how science can "show the existence" of anything whatever, except by "finding results that are compatible with its existence".

The map is not the territory.

No, first please explain how making the distinction quoted in my post contradicts in any way what you write above.

If the first part of your first sentence refers to a) and the second refers to b), the distinction just points out that b) is a necessary condition but not a sufficient condition for a).
 
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  • #34
AlephZero said:
Really? Please explain how science can "show the existence" of anything whatever, except by "finding results that are compatible with its existence".

The map is not the territory.

Well, b) implies a) but generally a) is all we can do :-)
 

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