Thread: Time Travel?

Originally Posted by Xei

irrespective of its source, and irrespective of how fast you (or another object) is moving, the light will always move relative to you (or the object) at 300 million meters per second.

Alright, I agree with your point that, relative to absolutely anything, a speed of 300 million m/s must always be attributed to light; that it is a property of light. However,

Originally Posted by Xei

This means we have to come up with a totally different model of space and time. In the question I asked, the point is that although for you sat on Earth the light is moving away from the rocket at 200 million meters per second, for the rocket, the light is moving away at 300 million meters per second, whereas in our standard model of space and time it should still be 200 million.

whether or not I am here to observe the light moving away from the rocket, the rate at which the light surpasses the rocket through space is 200 million m/s greater than that of the rocket. This is not subjective to an outside observer, nor is it denying how the light is still traveling at 300 million m/s. So, in regards to your example:

Originally Posted by Xei

If somebody fired a light beam towards you, if you tried to run away, it will still get 300 million meters closer to you every second, no matter how fast you ran.

although this is true, it is theoretically still possible for me to travel further and further away from the light as long as I'm traveling faster than it.