A big opportunity for rapid progress has emerged as online medical education becomes increasingly common. Doctors and nurses in even the poorest countries can now get much better training.
Meet Elizabeth, a twelve-year-old who walked over 10 kilometers to school and back every day. Despite her class being crowded -- sometimes with 75 children for each teacher -- she was lucky to receive an education at all.
There may still be thousands of people employed today with the job title of "teacher" or "educator", but it is misleading to suggests that all, or even most, aspects of providing an education should, or could, be placed into the hands of these individuals.
There is no secret sauce or pixie dust that will repair an unsustainable system. If we want to ensure that learning is provided to all, we need to rethink the basic premises of the education system.