An imaginary time means a situation of absence of Time.
The situation of absence time means Eternal condition.
The Eternal condition belongs to Infinite zero vacuum: T=0K.
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A black hole has temperature of only one ten-millionth
of a degree above absolute zero. In 1973 the temperature
of the cosmic microwave radiation was about 2,7 degrees
above T=0K. If the universe is destined to go on expanding
forever then the temperature will eventually decrease to less
than that of black hole . . . to zero: T=0K.
So.
There are three basic similarities between black hole and zero vacuum:
a) both have imaginary time
b) both have the same temperature
c) both can emit radiation in the form of "virtual particles"
Therefore black hole is zero vacuum.
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