like some countries/societies jumped straight into cell/smartphones by-passing the landline stage, i think such areas like Amazon should and would go straight the way of "flying car" (all those multi-copters popping around e.g. https://www.youtube.com/watch?v=FNxoHqZGYa0 - just add ICE/hybrid generator for range and tilt-able ducts for safety). Much less environmental damage, cheaper than whole road infrastructure and much faster to cover those distances.