Why the world population could get lower?
The world’s population could get lower, because maybe there could be wars, where many people
die. There could also be heavy pandemics, where also many people could die. The world’s
population also could get lower than expected, because the less developed countries do not get so
many children as before, because they do not need them to work for them or to make money. It
could also get less, because the desire of the people to have more space gets bigger and bigger, so
they do not get children to have more space. Also, if the technologies get better, you may not need
many human resources, so you get less children.
Why the world population could get higher?
The worlds population could get higher than expected, if you get advantages to have more children
like in France, where you need to pay less taxes, so more people can afford to get children. It could
also get higher, if more jobs would get created, so the demand for people rises. If life expectancy
gets higher, the worlds population would get higher, because more people will live on the earth.
The worlds population could also get drastically higher, if more people get counted, because I think
that they do not count many people in the developing countries, but I am not sure.