Does Isaac not know that he just travelled to Mars at the speed of light? Is that why you are suggesting that he doesn't understand why his clock is out of sync with the clock on Mars?
I don't recall suggesting that's what he suggested. According to classical relativity, to Isaac at noon Al's time when he fires his rocket, the moment of significance, it actually is
12:05 on Mars, just as it's 11:55 according to Marty. All three understand relativity and appreciate the others' viewpoint
That's what's meant by time-at-a-distance. Carrying it a step further, however, once he's arrived at his destination I'm suggesting to Isaac that another possible reason his trip seemed so fast isn't because his clock had stopped (as in Al and Martha's view) but that his trip was instantaneous
Of course in my weird posit, it's also the reason Al sees him apparently shrinking, getting more massive, etc
So he's given permission to adopt either view. Admittedly of course mine is still up for grabs
Are you suggesting that Isaac should pre-set his clock to 12:05 before he departs so that when he arrives on Mars it will already match Mars time?
No but he has my permission
In other words, that when we look at distant objects that we should pre-set our definition of the object with a time value that we know relates to their distance from us?
Not exactly. If you will review my former postings still again once more you will see that with my prop we assume that actually is
At risk of repetition, revisiting still once again, replay of recapitulation; at any point in the Universe the time at distance d is thus t = d/c. I describe this as "favoring" Isaac's view at his launch, and ask Al to accept it also, explaining so much more easily all the peculiarities Isaac seems to undergo and why no matter how much fuel he uses he can never achieve exactly c
(Somewhat OT Ros but Isaac's situation is essentially identical to one in which our galaxy collection, that's all of 'em we can see, constitute only a peripheral fraction of the total, but owing to the Big Bang it's actually traveling at (ok, very near) c. So when Isaac fires his thrusters he actually becomes stationary
So in that scenario, even by classical relativity, his trip indeed is
Indeed the classical concept of t-at-a-d is a tough idea to grasp in the first place, much less my alternate speculation. I hope it's all a little clearer and again thanks Ros for your participation, with my apologies for any apparent lack of clarity