I was reading some interesting articles at wikipedia on black holes and time dialation: http://en.wikipedia.org/wiki/Black_hole http://en.wikipedia.org/wiki/Time_dilation I remember this subject interested me greatly when I was in high school physics. I'm pretty rusty now, so bear with me. The "facts" I present may be warped and demented. Fair warning. Reading this information, and going on what little I remember, time dialation is the apparent slowing down of time of an object as far as an observer is concerned. One of the wikipedia articles goes as far as mentioning that this slowing down of time would make it possible to time travel. I'm not so certain I believe whether this phenomenon is *actually* an effect of time. To illustrate my point, consider this hypothetical situation: Your friend is in a car, driving at 20m/s. He throws a ball out the window, in the opposite direction that he's driving. Let's say he throws the ball hard enough to give it a 30m/s velocity in the opposite direction that he's driving. You are watching your friend from behind the car as he drives away from you. When he's driving at 20 m/s and throws the ball out the window at 30, you see the ball move 10 m/s towards you. If he accelerates to 30 m/s and throws the ball in the opposite direction with the same velocity as before, you see the ball fall to the ground, never approaching you. From the driver's perspective, of course, as he's in a moving vehicle, the balls are all moving away from him. What if you apply that same principle to light? The car becomes an object travelling towards a black hole. The ball becomes a photon. You are still you. As the object accelerates, the photons that reflect from it, or are thrown from it, head in your direction at increasingly slower speeds. As these photos reach you, you see an image of the object. But as the photons are reaching you so slowly, and continue to take longer and longer, the image you see appears to be decellerating. You perceive decelleration, but the object is actually doing the opposite. The object flying towards the black hole's event horizon will appear to take forever to get there. What's really going on, is the *photons* are taking "forever" to get to you, but the object is long gone. I'm just wondering if this "time dialation" is simply perceived, but does not really exist, and so prohibits the exploitation of time dialation to travel into the future. I would tend to think so... am I off base?