M
Michael_David
Guest
Let’s say the birth rate was at 2.1,now it is down to 1.8… this is not a ‘negative’ population growth, it is a ‘decline’ from the previous rate of growth, but still growth. (Which direction is it “in” from the zero point, not from the last point of record?)
If, say we will live for 80 years, and each couple has only one child (as in China), that child in say 20 years has a child, and this child in another 20 years has a child, and this child in another 20 years has one child (the original parents are now 80). This would be equal population maintaining for the original parents on both sides. Now, to account for perhaps 25% death rate before child bearing years due to disease or crime and you do have a decline in ‘maintaining’ the population. We know the 25% death rate is high compared to reality, so population will still s l o w l y increase. So, if we are at a 2.1 for each successive generation, we are most definitely gaining, even with the high 25% mortality rate.
If, say we will live for 80 years, and each couple has only one child (as in China), that child in say 20 years has a child, and this child in another 20 years has a child, and this child in another 20 years has one child (the original parents are now 80). This would be equal population maintaining for the original parents on both sides. Now, to account for perhaps 25% death rate before child bearing years due to disease or crime and you do have a decline in ‘maintaining’ the population. We know the 25% death rate is high compared to reality, so population will still s l o w l y increase. So, if we are at a 2.1 for each successive generation, we are most definitely gaining, even with the high 25% mortality rate.