1. Demographic transition
Barely 20 years ago the world was confronted with a population explosion. Now we witness a more complex phenomenon: while in some countries population is exponentially increasing resulting in an age distribution where the majority are younger than 25, in most of the developed countries the fertility rate has dropped to about 1.5 (considerably lower than the replacement level of 2.1) and the life expectancy has increased resulting in the number of persons older than 60 becoming greater than the number of those under 25.
by Raimondo Cagiano de Azevedo
University of Rome ‘La Sapienza’
Vincenzo Marigliano says that we have cultural barriers to the accepting of some evidences from the medical or the statistical point of view. I would like to do the same exercise with you: to read the same data with the current cultural barriers and without them.