That depends on how many children longer-lived people want to have (a point that was actually made in the programme). To get an initial idea, we might compare the number of children people have now with the number people had when life expectancy was much less than now. The problem, if such it be, is the opposite: fertility has been declining in the educated, prosperous West, not increasing in accordance with our greater healthy lifespan.
That depends on how many children longer-lived people want to have (a point that was actually made in the programme). To get an initial idea, we might compare the number of children people have now with the number people had when life expectancy was much less than now. The problem, if such it be, is the opposite: fertility has been declining in the educated, prosperous West, not increasing in accordance with our greater healthy lifespan.