Practical Guige to Free Energy Devices

which had been minimal up to then, due to family deaths running at four people in a family of six,
reinforced by the fact that average lifespans in those early years being very low. World
population reached 2 billion in little more than 100 years afterwards due to the Industrial
Revolution. He states that when he was at school, it was 3 billion and at that time, experts said
that the planet just could not support so many people. However, contrary to those opinions, in his
lifetime it has more than doubled to 7 billion, which he displays graphically like this:
He takes Bangladesh as a particularly severe case. There, during his lifetime, the population has
tripled from 50 million to 150 million, but there has already been a major change in lifestyles and
attitudes. In 1972 there were on average, 7 babies per woman and the baby’s lifespan averaged
at just 50 years. That has now dropped to just 2.2 children and the lifespan is now 70 years. In
addition, the government now pays parents to keep their children in school longer so that they get
a much better education and have far greater opportunity to get well-paid jobs. In just 40 years,
Bangladesh has made spectacular progress, but it is not alone in that. In 1963 the average
number of babies per woman world wide was 5 while in 2012 that had fallen to just 2.5 and is still
decreasing. This change is also not related in any way to religion as every religion has 2-child
families as the most common family unit. Child survival is a key factor because if it is almost
certain that one or more children will die before the age of five, then parents have more children
to allow for that near certainty. The rapid increase in population size which became very
noticeable in 1963 was because the average number of children per woman was five, but only
one of those five did not reach adulthood, while not long before that, the average number of
children per woman was six but, tragically, four of those six died at an early age. Child mortality
rate is a critical factor.
The best projections available for the future are that the world population will continue to
increase, primarily due to better health care and will continue to rise steadily to about 11 billion,
and around the end of this century, will level off around 11 billion. This increase is due to the
present population growing older and staying healthy, rather than an increasing number of
babies. Actually, the number of babies in the world stabilised around the year 2000 at about 2
billion and is staying steady at that level. Prof. Rosling, who knows a great deal more about this
than I do, sees this as the key factor for population zero-growth rate. Personally, I would have
thought that the ratio between births and deaths on average world wide was the key factor, but
Prof. Rosling certainly seems to know exactly what he is talking about and he displays what he
considers to be a reliable estimate of future population growth like this:
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