I also just saw a roleplay description when looking over the nation RP section that was littered with scientific errors:
"Reality has 11 dimensions, as predicted by [b]quantum [i]theory[/i][/b]. The [b]higher the dimension[/b], the more apparent power one has. At the 11th dimension there [b]is[/b] a membrane from which all began. Is that membrane a sentient being? Perhaps. Is it nothing more than a membrane? Perhaps. Whatever the case, those [b]from higher dimensions[/b] are often worshiped as gods and goddesses by those from lower dimensions."
The whole premise is based around the thought that dimensions as predicted by [i]string[/i] theory, not quantum [i]mechanics[/i] (it is never called quantum theory), are actually separate places, or that beings can be "from" them. This is silly; they're just like the first and second and third dimensions that we see. Just more complex projections of the same objects. A point in the first dimension to a square in the second dimension to a cube in the third to a tesseract in the fourth (in geometry, although really the fourth is time and not spatial). And besides that, the other 7 dimensions would not even be like the kind that we talk about in extra-dimensional geometry (I just made up that name now), but instead places for one-dimensional objects that vibrate throughout those extra dimensions.