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I suspect you're not really proposing a theory so much as a fantasy without foundation, rationale nor potential for testing.

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True, but I'm saying would it be possible for there to be a dimension where everything worked inversely as we see things happen? I suppose a more suitable name would be a reversed time dimension

I suspect you're not really proposing a theory so much as a fantasy without foundation, rationale nor potential for testing.

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Dimensions are not parallel or alternate realities/universes.True, but I'm saying would it be possible for there to be a dimension where everything worked inversely as we see things happen? I suppose a more suitable name would be a reversed time dimension

They are merely directions / degrees of freedom.

You could, as mentioned, orient your personal coordinate axes to gve time the opposite sign*

*ironically enough, relativistic spacetime events & intervals historically have time's future direction as negative sign, since the spatial dimensions were prioritised as positive.

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Edit: Sorry just noticed this is in QM section. My answer was more classical, but I don't believe there is much specifically QMechanical in the question

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fresh_42

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This is a false understanding of what a dimension is. A dimension is in any of its uses I know of a synonym for some kind of extension: whether it's mathematically a coordinate, or physically a quantity like length, time, mass, energy or whatsoever. @_PJ_ mentioned a reverse measurement of such an extension, but this is still an extension. That's the additive version of what you called "inverse". The multiplicative version would be a quotient, like frequency is. This, too, is physically a dimension. The fact that it counts something per second is only of technical interest and doesn't affect what is meant by a dimension. Therefore, there cannot be something of negative dimension. As soon as it is there, it has a positive dimension of some kind.True, but I'm saying would it be possible for there to be a dimension where everything worked inversely as we see things happen? I suppose a more suitable name would be a reversed time dimension

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Oh. I see what you mean. So there can be no negative dimensions

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fresh_42

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Yes. As far as I know, the weirdest you can get are some non-integer dimensions in fractal theory or topology. The smallest thinkable is a point, which has dimension zero. It "exists" without any extension.Oh. I see what you mean. So there can be no negative dimensions

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No, a dimension is stuff that can be measured (or hypothesized), the units you measure it in and whether you call them positive or negative units is arbitrary.Oh. I see what you mean. So there can be no negative dimensions

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Khashishi

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Drakkith

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I'm locking this thread before it starts attracting crackpots. Thread locked.

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