Dorothy, did you see my recent post about the average number of children per woman dropping toward 2 throughout the world. Go to www.gapminder/world
. It will pop you into a filled page whose address is way too long for me to cut and paste. At the bottom just left of the word "log", select for "Children per woman (total fertility)". Click on "Play" and watch the show from 1800 to 2011. Watch how the circles (each circle represents the population of a particular country) moves towards the left. Because of this and LENR, I am very optimistic
about our future. There are variables on the left also. You can select for "Income per person (GDP per capita....)" or hundreds of other statistics. This really is an amazing and enlightening and enlightened website.
You can play with this for hours. On the far right you can select any number of countries in order to give you a perspective on what is going on. I select the United States of America since I know them the best.
You can even select "Children per woman (total fertility)" for both axises, click "Play", and watch the 45% line move towards the lower left hand corner.