read "a brief history of time" by stephen w. hawking...time is not the 4th dimension...but it night be. there are no "for sures" when talking about stuff we know nothing about. like someone said b4, we cannot comprehend the 4th dimension just as someone from the 2D world, cant comprehend the 3D world. in this book he explains how travaling in 3D is faster than travaling in 2D.

http://newton.physics.metu.edu.tr/~f...g/eleven7.jpg*

that being said, one could say that travaling in the forth dimension could be faster than in the 3rd but how can we kno? well, we'll have to try and find out. if we can figure out the 4th D that is:P. one this is for sure, only time will tell



*http://newton.physics.metu.edu.tr/~f...hawking/j.html