SR time dilation on remote objects ?

Bjoern Feuerbacher wrote in message ...
Marcel Luttgens wrote:
SR time dilation on remote objects ?

A remark to all GRists:

Instead of quibbling about formulae incorporating the "assumed"
space expansion, (pseudo-)cosmologists should better give their opinion
about

The "Triplets" thought experiment (Adapted from the "Twin paradox")
_________________________________

"Terence sits at home on Earth. Galaxy (yes, it's her name)
flies off in a space ship at a velocity v/2. Simultaneously,
Terra (also a name) flies off in the opposite direction at -v/2.
After a while, Terra, who considers that Galaxy flies away
from her at a velocity v, claims that Galaxy is now younger
than her, exactly like GRists claim that time goes slower on
SN because of space expansion.
According to Terence, both Terra and the GRists are wrong,
because Terra's clock and Galaxy's clock tick at the same
rate."

Till now, none of them dared to comment.
They should at least try to demonstrate that Terence is wrong.
As long as they play escapism, one has to conclude that
they are unsure of the validity of their paradigms.
In the meantime, further discussion is a mere waste of time.

Marcel Luttgens