As we drove into Igoda, I could hardly believe my eyes. When I left in 2011, most of these houses had grass roofs. A motorcycle was still a novelty, to be exclaimed over by children. Little one-room shack shops had just started to pop up along the main road.

This little village in the mountains of Tanzania had undergone a transformation. Now, signs of new affluence were in evidence everywhere: new buildings, new tin roofs, new beautiful, big shops selling fabric, fresh fruit and even toothpaste. And there were cars, CARS parked in front of houses.