>>12165970IQ only means your score well on tests that challenge you with patterns and symbols.
IQ has been going up by 2 points per decade for the past 50 years, does this mean your ancestors were dumber? Probably not. It means that what their brains were adapted to a different environment than we have today.
That is why you will see many isolated communities with low iq, their minds are adapted to their own environment.
