Four ideas to make the tech movement sustainable. It's not a new story: Africa is changing and slowly turning into a place of tech and innovation in the public perception. The chance that the wider penetration of the Internet and mobile technology will bring about wide-scale change on the continent is really high: The barriers to starting a business and to taking part in the global economy are as low as ever before. There is a growing young, dynamic and very creative crowd with a high affinity towards tech, which is going to make use of this opportunity. But how can we make this movement a lasting one?