[socratus]

Einstein's Special Relativity Theory / Twin Paradox does not have
any relation to a man.
Special Relativity Theory only examines the behaviour
of a quantum of light / electron.
Twin Paradox has relation only to a light quantum / electron.
SRT/ Twin Paradox has grown from Maxwell's theory.
And only an electron is a main and single hero
in the Maxwell's theory and SRT.
Socratus.

[socratus]

Maxwell's theory considered action of an electromagnetic field.
Fitzgerald and Lorents first began to consider electron in this theory.
Then and other scientists ( Poincare, Abraham, Einstein) become interested
with this question. And, proceeding from the Maxwell's theory,
Einstein has created SRT.
The Maxwell's theory and SRT are interconnected theories.
The main and unique hero of this theory is electron.
And only electron has changes which are described by SRT..
* * *
But!
But all have taken a great interest in only mathematical calculations and
began to consider changes of the car, train, plane, rocket
from the point of SRT view.
It is only mathematical abstraction.
How is it possible to compare electron with the car, train?
Unless is there a theory of a train, creating an electromagnetic field?
Unless is there a theory of a proton, creating an electromagnetic
or proton -magnetic field?
In our terrestrial life we use only service of the electromagnetic field.

[socratus]

Only the speed of a light quantum has
a absolute quantity of c=1.
No other particle can travel with the speed c = 1.
And I was taught at school from the first class:
that the incommensurable quantities cannot be compared.
To connect incommensurable quantities it
is similar to the decision of a problem:
“What will be if the whale will attacks the elephant?”

[socratus]

Then they began to consider behaviour of the astronaut
from the point of view of SRT and were surprised with " paradox of a twins ".
And all millions of books and clauses about " twins brothers"
are imagination and abstraction.
This effect is connected only with electron/ quantum of light.

[Lloyd Gillespie]

Originally Posted by socratus Then they began to consider behaviour of the astronaut from the point of view of SRT and were surprised with " paradox of a twins ". And all millions of books and clauses about " twins brothers" are imagination and abstraction. This effect is connected only with electron/ quantum of light.

Ah Socratus, all of these above posts are excellent. Keep up the good work at simplyfing the complex to sensible truths. Nobody has said it better...

regards