Black Holes: Internal Space & Matter Movement

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Invutil
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Do black holes have an internal space? Consider the diagram. Inside the negative space, a "bubble" of sealed space, matter is free to move.

https://dl.dropboxusercontent.com/u/109630018/temp/phys/blackholein.jpg
 
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The effect of a gravity source on space curvature is proportional to sqrt(d) where d is the distance, so if d is negative (internal) space, does it become a complex number and get another dimension? How come nobody's thought of it?
 
Invutil said:
The effect of a gravity source on space curvature is proportional to sqrt(d) where d is the distance
Where are you getting this from?
so if d is negative (internal) space
There's no such thing as internal space, and the sign of the spatial coordinate is arbitrary: I can always "re-zero" my ruler so that all distances are positive.
does it become a complex number and get another dimension?
What do complex numbers have to do with extra dimensions?