On 1/5/2014 4:33 AM, Edgar L. Owen wrote:
Brent,
No, that's the exact opposite of what I said. I said they ARE at the same "present
place" when their clocks don't agree.
Yes. So why don't you recognize that "present place" is just a label, exactly like a
latitude and longitude - and then that "present time" is a label, a coordinate time -
which the diagrams I posted made perfectly clear. The problem is that you seem to think
"here and now" implies a "there and now"; but "there and now" is ambiguous and is RELATIVE
to the state of motion.
Now a question for you. What is this "present place" they are in?
It's the location defined by their meeting, it's just a label with an ostensive
definition, aka "here".
Brent
Edgar
On Saturday, January 4, 2014 10:01:02 PM UTC-5, Brent wrote:
On 1/4/2014 5:44 PM, Jason Resch wrote:
On Jan 4, 2014, at 5:36 PM, "Edgar L. Owen" <edga...@att.net <javascript:>>
wrote:
Jason,
PS: And don't tell me the twins meeting with different clock times in the
same
present moment is "an event" as if that explained something.
I use that word in the usual relatavistic (and traditional) sense. As
something
with defined spatial and temporal coordinates. A known time and place,
where and when.
Jason
Of course it's an event. Everything that happens in the entire universe is
an
event. But what is the nature of that event from your perspective?
Jason, didn't answer that so I'll chip in. The nature of the event is that
two
people who followed different paths between two events in spacetime are at
the
second event. They synchronized their odometers before they left the first event.
One took the freeway, which was straight to their meeting point. The other took
some interesting mountain roads and when he arrived at their meeting place
his
odometer indicated a bigger distance. But Edgar said that's impossible,
"How could
they both be at the same present place when their odometers don't agree?"
Brent
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