in M Theory. The concept seems like a bit of mathematical trickery to me. If you come up with enough variables, you can ultimately model any logical system without having much insight into the system's fundamentals. I'm not dissing the theory or anything. Basically I don't understand it well enough to say much about it one way or another. But anyway, I have a few questions about these dimensions if anybody can help me out. 1. Are they observable in any form? For instance I can observe distances with a ruler and time passage with a clock. Is there any way to observe these dimensions? 2. I've heard it said that the dimensions are "small." What does that mean? Does it mean that variations in these dimensions don't have easily observable effects? 3. Are they "relative" like space and time, meaning that an absolute time or position value has no meaning. Same for these dimensions? 4. Related to question 2, is it possible that values in these dimensions could produce observable and important effects? For instance I've heard it theorized that the Large Hadron Collider could create states in upper dimensions that could lower the energy threshold for creating a black hole. Is that plausible? Thanks for any help on this subject.