In my opinion, when it’s come to predicting the future, especially population growth, there are numerous possibilities of things that might happen. I agree with Dr. Hans Rosling that confusing numbers and statistics with emotions would not lead to a reliable and accurate result. That would automatically making me a possibilist, an ambiguous concept of forecasting what would happen to the world.

According Dr. Rosling, the total population in 2050 would be 9 billion, instead of 12 billion if and only the two following conditions are met.

On the top of your head, can you name all the stages of photosynthesis? The date of the storming of the Bastille in the French Revolution? Or what it is? What about the lyrics of a new Gaga hit, even? Yes? … No? … Google?

In olden times, it is usually mistaken that intelligence meant knowledge. At school, the “smart” ones were always the ones who memorized all the algebra equations, aced all the tests and remembered the periodic table of elements by heart; they were the ones with the Ivy League within reach and stood out in their classes, petted by teachers and students alike. But when put to the test, can these smart ones really put their knowledge to use?