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I thinking how to calculate time dilation in different time with usage of average mean density.
Lets set that Universe have average mean density ##\Omega_{t1}## at time t1 and ##\Omega_{t2}## at time t2.
How to get time dilation, for comoving observers, between time t1 and t2?
Lets set that Universe have average mean density ##\Omega_{t1}## at time t1 and ##\Omega_{t2}## at time t2.
How to get time dilation, for comoving observers, between time t1 and t2?