It makes most sense to me if you think of change as a result of people doing things and sharing information and the size of the population. About 7% of the peop

It makes most sense to me if you think of change as a result of people doing things and sharing information and the size of the population. About 7% of the people who ever lived are are alive today. https://info.nicic.gov/ces/global/population-demographics/how-many-people-have-ever-lived-earth https://info.nicic.gov/ces/global/population-demographics/ho...