This is such a lonely book.  It is disconcerting. It is philosophical and speculative and raises many questions, offering no answers. The narrator's unique position of having no experiences of life outside - being without culture, society, knowledge - brings our understanding of personhood into question, when the signifiers are missing. 
A blunt look at survival, this book can be brutal, but with a surprising tenderness to it. It approaches the worst of life with almost distant observation. Unlike anything I have ever read.

"No life is ordinary. No life is without hope, without light, even during the unimaginable."