What are the implications of an undetectable particle in the field of science?

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Discussion Overview

The discussion revolves around the implications of undetectable particles in science, exploring philosophical questions about existence and detection, as well as technical considerations related to particle physics and the nature of light.

Discussion Character

  • Philosophical inquiry
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests that light may only be measured at speed C because that is the only speed at which it is detectable, raising questions about the implications of photons traveling slower or faster.
  • Another participant expresses a general reluctance among physicists to assume the existence of unobservable particles.
  • A philosophical perspective is introduced, questioning whether things exist if they cannot be detected and whether undetectable entities matter in scientific discourse.
  • One participant argues that the pursuit of knowledge requires investigating phenomena that are not yet understood, rather than dismissing them.
  • A technical point is made regarding virtual photons, which are not restricted to speed C, suggesting that this has implications for calculations in quantum electrodynamics.
  • Further philosophical questions are posed about the significance of undetectable particles and what questions they might help answer, emphasizing that the discussion is not about future technological advancements in detection.

Areas of Agreement / Disagreement

Participants express differing views on the significance of undetectable particles and the philosophical implications of their existence. There is no consensus on whether undetectable particles matter or how they should be approached in scientific inquiry.

Contextual Notes

The discussion touches on unresolved philosophical questions about existence and detection, as well as technical aspects of particle physics that may depend on specific interpretations or definitions.

fbsthreads
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has anything been written about the idea that light may always be measured as C, because that is the only speed at which it is detectable.

eg, photons go slower - we can't detect them
photons go faster - we can't detect them

photons go at c, we can see and detect them.

in what ways has this idea been dismissed,

cheers.
 
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In general, I believe physicists to be very reluctant to assume the existence of unobservables (for example particles which are in principle unobservable/undetectable).
 
Its more of a question of philosophy I believe anyway. Do things exist if we can't detect that they exist? Maybe a more important question is do they matter if we can't detect them? Or it may simply be that we have not discovered the means of detecting a certain phenomena yet, such as when the existence of light beyond both extremes of the visible was first discovered.
 
Do they matter if we can't detect them? Yes, There are more questions than answers in all of sciences. To get answers we need to learn as much as posible and observer all we can. I think that too many people working in sciences dismiss things that they don't understand reather than investigate them.
 
As I understand it, virtual photons are not restricted to speed c. This is important in using quantum electrodynamics to calculate things such as the scattering of an electron off of another electron. If the calculation was restricted to keeping virtual photons at speed c, the result would not match experiment.
 
brookstimtimtim said:
Do they matter if we can't detect them? Yes, There are more questions than answers in all of sciences. To get answers we need to learn as much as posible and observer all we can. I think that too many people working in sciences dismiss things that they don't understand reather than investigate them.
If can't detect them, why do they matter? Any examples of questions an undetectable particle could answer?

To avoid the inevitable: we're not talking about technology here (ie, we may eventually figure out how to detect it), we're talking about something that by its nature is completely undetectable.
 

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