My operating hypothesis is Mugabe wants to exterminate what he considers to be the "useless eaters" inhabiting his country and once it is throughly depopulated, turn it into a jungle theme park for the European celebrities/intellectuals he wishes to impress.
Sorry make that Chinese Celebrities/Intellectuals
http://www.freerepublic.com/focus/f-news/1410622/posts
Mugabe is the apotheosis of african nihilism, self-hatred and corruption.