quality learning / expansion forming occurs over a frequency of 300000000 age which is considered a very long space to a mankind
growth_event is becoming. youngness is age. earth is not over_5_billion_years_old. information_age is modern_era. earth is over_5_billion_years_old. jazz_age is period. development is becoming. maturity is date. space_age is time. age is period_of_existence.