new.vogue.nightmare wrote:Time travel in reverse is theoretically possible, except it would require faster than light travel. The only way one can travel faster than a beam of light requires the light to slow down, such as with a massive gravitational field, and for an object travelling incredibly fast to take another route around the field, thus beating the beam of light. Or something along those lines...I didn't pay enough attention in class really. Anyway, the only thing capable of doing something to that effect would be a cosmic string, assuming they exist. I think. *scratches head and desperately tries to remember*
Actually, FTL speeds are possible according to QT, but it's not speed as we commonly think of it. There is mounting evidence that on a subatomic level energy transfer can be instantanious, resulting in info tranfer at a FTL speed, but not in "speed" as we think of it. FTL travel in our common sense of the word is impossible (barring wormhole and cosmic string theories) because the faster something moves the more energy required to move it because the "heavier" it becomes and when you reach a certain speed it requires an infinate amount of energy to move an infinate amount of mass, so making it impossible to go any faster.
Another interesting fact, if quantum theory is correct then there is a MINIMUM of 7 dimensions.
And for something to really blow your mind, look up the "membrane theory" of the birth of the universe...I'm still having problems getting my head around that one, it's a new theory that will probly replace the "big bang" theory in a few years as the accepted way that the universe was created.