Low tech v/s high tech

As Wade Davis says, ancient wisdom really matters in the modern world, technological wisdom present itself in every culture in different ways to solve local problems, and in the traditional way, with local materials and skills. Ancient technologies solve problems based on locally available materials processed through simple or low skills techniques and usually also with low secondary or post process wastes. Today’s obsession with high tech solutions is leading us to an overexploitation of resources and dependence on a global supply chain. but is even a deeper difference between high and low tech as Professor Kai Simons explain in this video, high tech require more specific and less available materials which are running out fast increasing the price and the availability of solutions based on high tech. If we keep relying in high tech and don't focus soon on start producing local low-tech solutions there is a danger that this issue turn from a technological problem into a political one with the well known characteristic of the political approach when it comes to deal with precious resources.