Since 1965, Faustino Barrientos has lived alone on the shores of lake O'Higgins in a house built from the remains of a shipwrecked fishing vessel. He's a pastoralist, living mostly off the land and his livestock, with few modern amenities. His nearest neighbors are in Villa O'Higgins, a small community of several hundred people, 25 miles away, accessible only by a two-day horse...