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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Today at 08:33:07 »Israel is somewhat unique in that motto. Our Western outpost, and bastion.
Perhaps it's because the speed of light is defined to be a constant, and spacetime is defined so that its expansion doesn't change the speed of light.The required characteristics of a standard is consistency from time to time. Its value in the past should be the same as its value in the future.
As far as I am aware, there has been no good evidence to date that the speed of light in a vacuum has changed over the lifespan of the Universe. All that has changed is the precision with which we have measured it.
You missed the fact that the Earth clock is inertial between the two events of the 'jump' and the traveling clock is not, so its worldline is half the temporal length that it would have had had it been inertial between its two events.Where does the number "half" come from?