How old is the Earth?

[Zen Badger]

"..using the observational definition of time, the speed of light depends on its direction of propagation relative to the observer. (Again, this is a property of spacetime, and not a property of light. All relativistic particles such as neutrinos would also move at different speeds in different directions.) Light travels at the canonical speed of 1,079 million km/hr only when moving tangentially relative to an observer. It moves at half the canonical value when moving directly away from the observer, and it moves infinitely fast when travelling directly toward the observer—travelling instantaneously from point A to point B."

Interesting, but not supportive of your case, even if it were true( and according to relativity it isn't) the speed of that lightbeam is still constant. It still takes time for the light to traverse the interval to reach the observers eye.

Imagine this, the same beam of light is observed by three different people, one from behind, one from the side and one in front. According to what you've stated the light will have three different velocities at the same time.

I don't think so.