On May 6, 3:01 pm, Mike wrote:
On May 6, 9:38 am, Albertito wrote:

I can imagine the twin paradox resolved if the travelling
twin undergoes time dilation when he is receding, but
he undergoes time contraction when he is returning home.
So, at the end of the trip, he will stay at rest near his twin,
and they would have aged equally.

We need clocks that can look out of the window and see which direction
and towards which destination are travelling.

Are you a troll Albertito?

Mike

No, I'm not a troll, believe me.
No, we do not need that feature for clocks.
It suffices all the clocks had a universal origin
and were synchronized, say a "Big bang"
origin.