QUOTE(bubbliblu @ Jul 3 2009, 01:00 AM)
We talked about going back and forth in time...
But has anyone pondered about the possibility to freeze time?
Freezing time as in everyone else and everthing else is freezed and only you can move...like in many fictions...
QUOTE(Shadow Kun @ Jul 3 2009, 01:21 AM)
the only way to achieve this imo is that you speed yourself up until everything else is slowed down (in your perspective) to a point that they seems like completely stopped. how to do it? i dunno lolz.
Like you said, even if we can freeze time, we only return to the time before we start. Read on for a simple example.
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From first person perspective (imagine we are the one who travel in lightspeed):
When we speed up, everything around us slow down, but the time on us still tick normally. When we travel at lightspeed, time stop around us. Say we spend a year in lightspeed, and return to earth. We effectively aged by a year. But because time stop when we travel at that speed, we return to the same time the moment we left.
From third person perspective (imagne we are a friend of the time-traveler, sitting on a bench observing him/her):
We see our friend buckle himself in the lightspeed machine. Then countdown for take-off. And within split second, like nothing happened, he unbuckle himself, and looks like he aged for a year. Then he start telling story of space travel for the past 1 year.
Back to physic (from time-travelling point of view):
Even if we travel at lightspeed, we can't go back in time. What we do is simply return to the moment before we travel at lightspeed. Yet we aged for as long as we spent in lightspeed.
There is a theory, if we are able to travel exceeding lightspeed, we can travel back in time. (also mention in Hero series, rest assure that this is a valid theory). But it's just a theory. Our current mathematical model cannot predict that far. Nobody know how do time behave if we exceed lightspeed.