How many dimentions are known, what is there or what exists?

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Discussion Overview

The discussion centers around the nature and existence of dimensions in scientific theories, particularly focusing on whether dimensions beyond the four commonly recognized (three spatial dimensions and one time dimension) are merely theoretical constructs or if they have any physical reality. Participants explore the implications of having more than four dimensions, including the complexity it introduces to our understanding of the universe.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions whether all dimensions in scientific theories are just theories and suggests that limiting dimensions to four might simplify understanding.
  • Another participant confirms that the four dimensions correspond to the numbers needed to specify an event in spacetime, but notes that theories with more than four dimensions could potentially explain observations better.
  • A different viewpoint suggests that additional dimensions may not necessarily be spatial but could represent extra variables in the mathematics used to describe interactions.
  • Some participants assert that there is currently no proof of extra dimensions and mention that some theories propose these dimensions could be very small and curled up.

Areas of Agreement / Disagreement

Participants express differing views on the necessity and existence of dimensions beyond the four commonly accepted ones. There is no consensus on whether more than four dimensions are needed or if they exist at all.

Contextual Notes

The discussion reflects uncertainty regarding the implications of higher dimensions and the lack of empirical evidence for their existence. Theoretical frameworks are acknowledged, but limitations in current understanding and experimental validation are noted.

alteredmind
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ok so I have a question, I really don't know in witch subject this belongs but its either physics or astronomy I am guessing. Are all the dimensions in scientific theories just that only? a theory or theories and nothing more like having more then 4 dimensions witch goes up to 11 dimensions in the universe? there is the first dimension, second dimension, 3rd dimension and the 4th dimension is time, correct? what's if that is all there is? doesn't that make things more simple instaid of all the mental complexity?
 
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alteredmind said:
Are all the dimensions in scientific theories just that only? a theory or theories and nothing more like having more then 4 dimensions witch goes up to 11 dimensions in the universe?

I'm sorry, I cannot understand what you're trying to ask here.

alteredmind said:
there is the first dimension, second dimension, 3rd dimension and the 4th dimension is time, correct?

That is correct. The 4 dimensions correspond to the 4 numbers required to specify the location of an event or object in spacetime. Three numbers correspond to each spatial dimnension (think of them like the X, Y, and Z axes) and the 4th represents the position in time.

alteredmind said:
whats if that is all there is? doesn't that make things more simple instaid of all the mental complexity?

Theories with more than 4 dimensions might be much more complicated, but they have the potential to better explain our observations about the universe. No theory with more than 4 dimensions is currently considered 'correct'. All theories with more than 4 dimensions are purely theoretical/hypothetical at this time. It may turn out that we don't need more than 4 dimensions to explain the universe, or it may turn out that we do. Only time will tell.
 
alteredmind said:
more then 4 dimensions witch goes up to 11 dimensions in the universe?
The explanation which made the most sense to me was that each additional variable is another dimension. It isn't necessarily a dimension in space, like the 3+1 dimensions of space and time, but another dimension in the mathematics required to describe interactions.
 
alteredmind said:
Are all the dimensions in scientific theories just that only?

Correct. We don't have proof that extra dimensions exist.

Some theories assume that the extra dimensions are curled up very small. Experiments have been done that attempt to put an upper size limit on the extra dimensions.
 

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