By the turn of this century Africans will constitute 40% of the world’s population. At approximately 1.3 billion people Africa’s population is presently lower than that of China. Over the next 80 years that will change in an incredibly massive way. Whilst this transformation happens, something else equally impressive will be taking place; Africa will be urbanising at unprecedented levels. Almost 20% of the world’s urban population will end up living in African cities; that is some 2.5 billion people. Whats more, at that point in history, Africa’s total urban population is likely to only be 60% of its population versus ~86% in the U.S. today. I believe it’s urbanisation and population growth story will likely persist into the 22nd century; with population growth beginning to slow as Africa becomes more affluent, but with urbanisation likely continuing to be fairly rapid. In many ways the story of Africa over the next two centuries will be one of existing cities growing into mega-cities on the one hand, and completely new cities being built from scratch on the other. Lagos is expected to grow into a city of ~100 million by 2100, up from ~20 million today. Lusaka, where I live, may grow into a city of >30 million by 2100 up from ~3 million today. In both cases I’m doubtful that municipal or central governments will be able to finance the infrastructure rollout required to make such growth in populations sustainable. Financing the growth & the existing deficits at the same time would prove to be an insurmountable challenge. Rather I believe that the private sector will be the means by which the growth of city populations in Africa will be made not only sustainable but rather—possible. The alternate reality will be urban sprawl that consists mostly of shanty cities. A future I believe most people in Africa would prefer not to see unfold.