Are Length and Time Quantized According to Future Theory?

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Discussion Overview

The discussion revolves around the quantization of length and time, exploring whether future theories in physics are expected to demonstrate this quantization. Participants also question the implications of such quantization and its relationship to mass and energy, particularly in different contexts.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that the quantization of length and time is an open question, with certain theories suggesting that space and time may be quantized.
  • There is a query regarding the phrase "all cases" in relation to the quantization of mass and energy, with one participant noting that photons are quantized.
  • One participant challenges the notion of a "preferred position" in physics, suggesting that the current theories have not yet reached a stage where testable predictions can be made.
  • A suggestion is made to consider the Planck length and Planck time as relevant concepts in this discussion.

Areas of Agreement / Disagreement

Participants do not appear to reach consensus on whether length and time are quantized, with multiple competing views and uncertainties remaining regarding the implications and definitions involved.

Contextual Notes

The discussion highlights limitations in the current understanding of quantization, particularly regarding the definitions of terms and the lack of testable predictions from existing theories.

Jarwulf
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Are length and time quantized? Is future theory expected to show that they are? Is this quantization real or simply due to the fact that there is no way to measure beyond certain scales?

Are mass and energy quantized in all cases?
 
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Jarwulf said:
Are length and time quantized? Is future theory expected to show that they are? Is this quantization real or simply due to the fact that there is no way to measure beyond certain scales?

Are mass and energy quantized in all cases?

First question - it is an open question. Some theories unifying gravity with the other forces include space and time quantization.

Second question - what do you have in mind "all cases"? Photons are quantized.
 
mathman said:
First question - it is an open question. Some theories unifying gravity with the other forces include space and time quantization.

So its by not the preferred position?
 
Jarwulf said:
So its by not the preferred position?

Physics is not a matter of "preferred position". The theories involved have not reached the point where predictions can be made that can be tested by observations.
 
look up Planck length and Planck time.
 

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