Question about other dimensional spaces

[Migue79]

So I have this question:

I have noticed that for explicitly pocket dimensions, we cap its size according to whatever is inside of them (like if a pocket dimension contains a star it's 4-C or if it contains a galaxy it's 3-C or whatever).

But what about dimension/realities that are portrayed as not pocket ones but parallel ones (especially those that are parallel to the real world)? What would be the usual cap for them?

 

[Zeldris98764]

I believe it often boils down to how these parallel realities are depicted. It's a bit less about a strict "cap" and more about a default assumption based on context.

For parallel dimensions/realities that aren't explicitly pocket-sized and are presented as, say, alternatives to a main universe:

• If they appear to be full-fledged, independent universes, the general starting assumption is often that they are 3-A in terms of spatial scale, similar to our own observable universe, unless specific details suggest they're smaller or, perhaps, infinitely vast (High 3-A).
• If they're shown to be complete 4-D spacetime continuums (i.e., having their own independent timeline from beginning to end), then affecting or creating/destroying the entirety of one would typically be Low 2-C

The term "dimension" itself can be a bit tricky. If it's used synonymously with "realm" or "parallel world," the above usually applies. If it's referring to higher spatial dimensions in a mathematical sense, then you'd be looking at Tier 1 scaling (Low 1-C and up).

So, there isn't a universal "cap" as such – they could be part of a larger multiverse (Tier 2) or be even more complex. It really hinges on the specific evidence within the fiction regarding their size, structure, and nature. Without that, it's hard to be definitive.

 

[Migue79]

Interesting. So there’s no upper limit to how large parallel realities can be. And the lowest they can be I imagine is the size of the dimension they’re parallel to…?

 

[SweetDao]

But what about dimension/realities that are portrayed as not pocket ones but parallel ones (especially those that are parallel to the real world)? What would be the usual cap for them?

Depend. If the parallel dimension is a parallel version of the main universe, you can reasonably assume it's around the same size as the original one. Obviously, getting some confirmation would be better.

Although, there is no real limit either, that alternate dimension could be way smaller, the same size, or bigger than the original universe, you just need to prove it.

 

[Vietthai96]

we cap its size according to whatever is inside of them

Small correction, it isn't, you can have an empty universe yet it is still 3-A, so too pocket dimension can be empty and still can be tiered depend on its size