Gravity-time, Gravity-space.
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We speak the word "time" without concrete scientific definition.
Therefore our knowledge about "time" is foggy.
But if we say "gravity-time" then the fog is disappeared because
for us there isn't another "time" expect the "gravity-time".
We don't use light- travel- time
( so- called 1Astronomical Unit) in our daily life.
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The same "fog" is with the word "space".
For us there isn't another "space" expect the "gravity- space".
We don't use another spaces in our daily life.
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The conceptions "time" and "space" are property of Gravity.
Without gravity there isn't "time", there isn't "space".
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The discussion about "time" and "space" without Gravity is tautology.
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