Wow. I found this thoroughly engaging, despite the great amount of information conveyed. But even more important, I feel like reading this has shifted my thinking. I've never really thought about light before because, as she points out, it has become something we (and of course I mean we living in prosperous and politically stable countries that actually have the ability to create and maintain widespread electrical grids) take for granted because it's just always there. The impact it has socially, culturally, and environmentally is immense, though, and that had never occurred to me before. I'm so glad I read this because it's forcing me to confront my own privilege, how dependent we are on what is really a volatile and somewhat fragile system, and a lot of the damage it's doing to the world around us.