Douglas Mallette has a YouTube channel called TZMSocialEvolution. Above is the first part of 'Our Technical Reality' (uploaded on his channel), which basically shows that we can run the entire planet on clean energy systems. That is, if we wanted to. Advances in robotics are mind-blowing and also prove to be a tremendous asset in medical procedures. The documentary shows that the current state of technology can solve many problems in the world, we just have to find the will. Not the money.