@Steliyan_Petkov_Georgiev Let's make things simpler. The number of human beings who will ever live is a finite number. You cannot assume (or guess) where the mean of this sequence is, if you don't know how long this sequence of numbers is, if you basically don't know anything about this sequence of numbers. If you arrive at a point where the sequence of numbers has reached its end - YES, you can make assumptions then. Not before.
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Once you know that the sequence of numbers started at 1 and finished at 1'000'000'000 and that 70% of the numbers are clustered around some point, then yes, you can make conclusions.
Right now you have some numbers: 1, 2, 3, 4, 5... You don't know where this sequence of numbers will end. You don't know anything about it. And somehow you assume that number 5 should be around the mean. Why?