So you also believe that it's useless for anyone to compare Sri Lanka with Australia right ?
At the end of the day, it comes down to the ability to spend isn't it..?
In 1950 SL population was only 7 millions..
Perhaps if SL couples limit their children to just 1 and after about 2 or 3 decades, we would have a sustainable population, in relation to the GDP..
But somewhere I read that high population adds to the GDP as a supporting argument for migration..
However for that matter, US and India have vastly different populations and GDP..