Dimension in physics

  • Thread starter Whitefire
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  • #1
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I know this has been mulled over time and time again in different threads, so I will keep it short.

Which statement is more consistant with reality:

1. A dimension = all existing and non-existing points along an axis.
2. A dimension = all existing, but only existing points along an axis.

(change 'points' into 'events', 'interactions' or whatever else you prefer)

Thank you.
 

Answers and Replies

  • #3
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Usually a dimension is assumed to be infinite (number 1) but it is typically a range of values for a unique characteristic of which limits of existence can be constraints in that range.
 
  • #4
DennisN
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I know this has been mulled over time and time again in different threads, so I will keep it short.

Which statement is more consistant with reality:

1. A dimension = all existing and non-existing points along an axis.
2. A dimension = all existing, but only existing points along an axis.

(change 'points' into 'events', 'interactions' or whatever else you prefer)

Thank you.
How large is a point? Please specify in e.g. meters1, meters2 or meters3, whatever you prefer.

My question is a trick question.
 
  • #5
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Okay, let's go with the flow.

What are the 'points' of the 4-dimensional universe around us? Are they the independant, fundamental elements? Like, maybe, photons, electrons, quarks?
Or is the 4-dimensional universe made up of collisions, interactions, relations between these elements?

Which is the basic stuff of reality?
(or to be fair: maybe both or neither, or you have some other answer)
 
  • #6
Dale
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We stick to standard definitions here.
 

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