Demographers can no more be held responsible for inaccuracy in forecasting population
20 years ahead than geologists, meteorologists, or economists when they fail
to announce earthquakes, cold winters, or depressions 20 years ahead. What we can
be held responsible for is warning one another and our public what the error of our
estimates is likely to be. Nathan Keyfitz (1981)
¶
In the pursuit of our daily life, be it at the individual level or as a society, we are constantly guided
by expectations about the future.