I'll try to clear up the time-travel thing. It's possible to move forward in time but it isn't exactly like the movies depict. You don't just hop into a box and flip a switch. To go forward in time you must travel at the speed of light. If you travel one light year at the speed of light, you will have aged a year whereas the rest of the world will have aged decades and decades. The only reason that this is impossible is because it's impossible to travel the speed of light. It would require an infinite amount of fuel. This factor of impossibility was proven by Einstein's theory of relativity, E=MC2 ( the two means to sqaure it, not multiply by two). Although, it may be impossible to travel the speed of light, it might be possible to travel very close to the speed of light, and seem to go forward in time.