Stopping Time: Methods and Possibilities

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Discussion Overview

The discussion centers on the concept of whether time can be stopped, exploring various theoretical implications and interpretations from the perspective of relativity, the speed of light, and the nature of time itself. Participants delve into both conceptual and technical aspects, raising questions about the implications of traveling at or beyond the speed of light.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that according to relativity, if one were to travel faster than the speed of light, time would appear to stop, though they express uncertainty about the implications of this idea.
  • Others argue that while time may appear to stop for an observer moving at the speed of light, it does not mean that time stops in their own reference frame.
  • A few participants propose that time is effectively stopped for photons, as they do not experience time, leading to the assertion that traveling at the speed of light would result in zero time to traverse any distance.
  • Some contributions highlight the mathematical implications of traveling at the speed of light, noting that it would require infinite energy and that the concept of a reference frame for a photon is problematic.
  • There are discussions about the potential for time to stop at the event horizon of a black hole or from the perspective of an accelerating rocket.
  • Participants also explore the idea that traveling faster than light could allow one to revisit past events, although this raises questions about the nature of time and physical processes.
  • Humorous remarks about stopwatches are made, indicating a light-hearted approach to the topic amidst serious discussions.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether time can be stopped, with multiple competing views and interpretations remaining throughout the discussion. Uncertainty persists regarding the implications of traveling at or beyond the speed of light and the nature of time itself.

Contextual Notes

Limitations include the dependence on interpretations of relativity, unresolved mathematical implications, and the ambiguous nature of reference frames for entities traveling at the speed of light.

  • #31
SinghRP said:
Light traveling faster than light! Imarinary relavistic mass. These are tachyons! I don't think they exist, but who am I to challenge you know whom.
Won't it wonderful if we can create tachyons and harness (use) them. We can see the past! And much more!

Even starting with the idea of a tachyon, it still won't let you communicate backwards in time! The laws conspire against it, even with that handicap! See http://math.ucr.edu/home/baez/physics/ParticleAndNuclear/tachyons.html" .
 
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  • #32
If you stopped time in your own reference frame, how would you know it?
 
  • #33
Even if you could stop time how would you ever know? Nothing would happen. It would start again and you would never know it had stopped.
 

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