On 2/7/2014 9:50 PM, ghib...@gmail.com wrote:
But the question then remains the same, and the process of dealing with it doesn't change in principle either. We would keep looking for ways to deal with the problems that keep the steer on the goal which is best efforts to see a sense, starting general, that edgar's insight can be true.

What is Edgar's insight? Can you explain it? All I've seen is that observers at the same event are at the same place and time - which is trivially the meaning of "at the same event".

His other insight, that distance relations are not fundamental but are derived from some kind of "alignment" of frames, sounds more interesting. Many people have noticed that you can define space just by sending light signals between observers with clocks, which is a way of "aligning" the clocks so they define and inertial frame.

Brent

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