Statistician Peter Grünwald of the Dutch CWI (National Research Institute for Mathematics and Computer Science) has calculated that up to now 107.5 billion people have been born. The current population of 6.7 billion is 6% of all the people who've ever lived.

Future vision by Erwin van Lun

If we presume that the maximum will be reached around 2050 and humanity will start to shrink afterwards, would the amount of people stop at 250 billion in a few hundred years?