AlucardXIX wrote:So...you ran into time?! Time is the 4th dimension, my dear...
It depends entirely on how you define your system, so there's no substance to that point. Often time is considered the first dimension. It's completely arbitrary.
Regardless, dimensions are not places, so it wouldn't be "inside" a volcano. Unless, of course, you're talking about a four dimensional volcano. Which you would have difficulty recognizing, since your brain is wired to deal with only the information of three.
Physicists miss out on these little pseudo-sci-fi dreams, I guess...