[Frumious Bandersnatch]

Time is rather iffy as it is subject to the "red-shift" of Einsteinian relativity.  The LWH dimensions (at least, as far as I know) are constant no matter where you are in relationship to anyone else (at least in this universe).

I will admit that in theory, at least, you can have unlimited dimensions (otherwise, why calculus?).  But a more interesting aspect to this discussion is what would happen if you could temporarily collapse the perceivable 3 dimensions to 2 in a small area.  It appears that this has better possibilities for actual teleporting.  OTOH, this entanglement teleporting thing may be a boon to medical science.  Imagine teleporting cancer or Ebola out of a patient's body.

[TopQuark]

Time is rather iffy as it is subject to the "red-shift" of Einsteinian relativity. I beg to disagree: there is nothing "iffy" about time. The red shift refers to measurement of frequency of light, not time.

I will admit that in theory, at least, you can have unlimited dimensions (otherwise, why calculus?). The calculus to which you refer is useful even in one dimension. It’s full name is the Calculus of Infinitesimals, reminding us that it really does not address the dimensionality. There are, of course, other calculi, such as vector and tensor ones, for which the dimensionality is of the essence.

[JRandomFreeper]

if you could temporarily collapse the perceivable 3 dimensions to 2 in a small area

How would one build a 2-d object and interact with it? (will I need a soldering iron?) How does going from 3-d space to 2-d space make teleportation possible? Hmmmmm.

/john