What is the actual definition of the position of an object?

  • Context: Undergrad 
  • Thread starter Thread starter quantum philosopher
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Discussion Overview

The discussion revolves around the definition of the position of an object, exploring its theoretical and practical implications. Participants examine the concept from various angles, including spatial coordinates, interactions, and philosophical considerations regarding observation and measurement.

Discussion Character

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

Main Points Raised

  • Some participants suggest that position is defined as the "space coordinate or set of coordinates where the object is located," while others argue that this definition requires further clarification on what "located" means.
  • One participant posits that interactions are more fundamental than position, implying that position may be a property derived from interactions rather than an intrinsic characteristic of the object.
  • Several contributions emphasize that position can be specified in terms of distances and directions from a fixed point, with some advocating for the use of coordinates and others questioning their necessity in defining position.
  • A few participants introduce theoretical frameworks, such as tetrads and timelike vector fields, to describe position, while others express skepticism about the complexity of the concept.
  • There is a discussion about whether position can be perceived without interaction, with some asserting that it cannot, thus framing position as a property of interaction rather than the object itself.
  • Some participants highlight the continuity of position over time as observed in macroscopic objects, while acknowledging that smaller systems may present more complexities.
  • Philosophical inquiries arise regarding the nature of observation and whether it is essential for defining position, with some participants drawing analogies to other properties like intelligence.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the definition of position, with multiple competing views and ongoing debates about the role of interaction, observation, and theoretical frameworks in understanding the concept.

Contextual Notes

Some discussions touch on the limitations of definitions based on observation and interaction, as well as the implications of using coordinates versus more general descriptions of position.

  • #31
renormalize said:
Your reasoning is still unclear to me. Can you answer this: do you, or do you not, believe that a random planetoid in the asteroid-belt follows a well-defined orbital trajectory as a function of time, regardless of whether that particular body has ever been observed by anyone or anything (such as astronomers, space probes or even aliens)?
I only believe that an observer or position detector will give the trajectory as predicted by laws of motion . Think of position as just a value given by a position detector with respect to time. Then there will be no meaning of position without observer
 
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  • #32
quantum philosopher said:
OK now I will be very specific . Define what is position (in any way that you want)
That is literally the opposite of what I asked. This thread is going nowhere. Thread locked.
 
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