venstresida.net

Paradox in relativy theory:

A man is born on earth at the same time as an alien on planet X.
The planet X moves half of lightspeed from earth.
When the man is grown up, he travels to planet X at the same time as when
the alien travels to the earth.

Is the man younger than the alien?

To use Einstein's general relativy theory,
we should conclude:

A. Since the man and the alien experience equal acceleration relative
to their home planet, their age should be equal relative to their home planet.

B. Since the alien has lived at half of lightspeed, it's younger than
the man when moving.

C. But the earth is also moving half of lightspeed relative from planet X.
That makes the time on earth go slower than on planet X.
Therefore the man is younger than the alien.

This shows that we can't predict the age of the man or the alien
relative to each other without a third reference frame.

Therefore the realitivy theory is not useful if we don't have a 0-speed reference.
Since the theory is not logic in these cases, everything cannot be relative.
This shows that Einstein's relativy theory is not true relative.