To lose one’s sight to the unpredictable course of retinitis pigmentosa is an experience many people with sight loss know all too well. In the US alone, there are an estimated 100,000 people with the condition, but there are not many who happen to be authors and journalists of considerable skill who can relate in a wonderfully compelling detail the very personal experience of losing their sight while also starting a family, maintaining social and work connections, and navigating the many perspectives on blindness swirling in the American scene. Only human, not artificial, intelligence is on tap for this conversation with the author of the remarkable new book, “The Country of the Blind.”