On 12/20/2018 2:09 AM, Jason Resch wrote:
How is it imaginary if they later confirm it? i.e., they wait 1 year, and compare their readings from telescopes of things 1 ly away from them, and when they compare notes each one confirms that indeed their presents contained a different set of objects on that day 1 year ago when they crossed paths.
If there was an event one light year away in one of their's "present" at the time they passed, the other will not agree that it was in his "present" at that moment. But they will agree on the event and it's causal relation to other events...which is why physicsts don't assign any significance to these subjective "presents".
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