What's also amazing (or worrying ?):
If we assume that Pakistan now really has 200 million people and still grows by 3% each year, that would add 6 million people each year.
China, on the other hand, grows by 6.4 million people anymore each year (+0.45%), despite being 7-times as big as Pakistan.
China isn't exactly the best comparison, considering the implications of the One Child Policy and Gender favoritism.
It should be noted that Pakistan growth rate from 2005 to 2010 was 1.84%. Pakistan's population growth is on the downswing, so scenarios of 400 million people crowding around the Indus river in 2050 are rather unrealistic.
