GRAVITY-TIME  and  GRAVITY-SPACE  and  SPACE-TIME.

 GRAVITY-TIME  and  GRAVITY-SPACE  and  SPACE-TIME.
a)
There is only one kind of ''time'' and it is gravity-time.
  There is only one kind of '' space'' and it is gravity- space.
We live on/in  Earth's  gravity-time and gravity-space.
For us this gravity-time and gravity-space  are absolute and different qualities.
All laws of physics are the same on every gravity- planet:
   so-called ''inertial reference frame.''
b)
But Einstein and Minkowski discovered another system of existence
so-called '' absolute 4-D spacetime''. This system doesn't have gravity.
About this system Minkowski said:
''The views of space and time which I wish to lay before you have sprung from the soil
of experimental physics, and therein lies their strength. They are radical. Henceforth,
space by itself, and time by itself, are doomed to fade away into mere shadows,
and only a kind of union of the two will preserve an independent reality.''
  /  Minkowski. Sep 21, 1908./  
c)
Gravity destroyed the Minkowski absolute 4-D spasetime and therefore
the laws of physics are changed from gravity-reference frame
to an absolute  4-D spacetime continuum  and vice versa.
These two systems have different physical laws.
Until today the connections between these two system is unknown.

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