The joys and dangers of ambition. South Africans are drowning in debt, but is that due to poor investment decisions or a lack of investment opportunities? Mark Barnes and Tim Cohen discuss whether South Africa should build a very tall skyscraper, reaching for the sky. Like Dubai. Or not. How is it possible that someone can just decide to build a huge city, just go ahead and do it, earn the scorn of millions, yet succeed? Yet, SA can't maintain the tall buildings it already has. Also, the 30% pass mark debate.