Strange that they are projecting 38 years ahead and assuming there are no large paradigm shifts that change the figures. Even though one of the biggest game changers ever (China's 1 child policy) directly influenced what they are talking about.

They are not considering possible global wars or plagues, new energy or food sources, AI, robotics or dramatic changes to global national boundaries.

I guess this kind of report is accurate given it's assumptions but I think it's only interesting as a "this is what might might happen if nothing interesting happens for the next 38 years".