Originally Posted by Bjarne
If motion is absolute, all observers are observing from the absolute frame. What else should they observe from?
If motion is absolute, there is only one frame. You can always compare each observer. Don't you understand the implications of your own claims?
You can only make conclusions if you have observations. Otherwise what you make is wild guesses.
No. Thought experiments without observation is fiction.
Or (C) you can go with relativity, which adequately exlpains EVERY observation we have made so far.
No. The only difference they will observe is the time the photon takes to move from B to A. Their rulers are different, but so are their clocks, so they will observe the same distance (in theory; in practice, of course, they have no way of knowing when the photon was emitted). And another condition, just for your enlightenment: They cannot observe the same photon, but I'll accept they observe different photons that traveled together.