For essential comments and conversations about this work, I extend special thanks to Don Ihde, Sabrina Hom, Chad Kautzer, Caroline Appleton, Jesper Aagaard, Mario Bianchini, and Sylvia and Thomas Hom. Thanks must also go to the folks from the postphenomenology research group and many others for sending ideas and pictures from around the planet. I deeply appreciate the work of the people at the University of Minnesota Press on this book and for guidance from my editors Danielle Kasprzak at Minnesota and Rebecca Rosen at The Atlantic. My appreciation as well goes to artists Sarah Ross and Fabian Brunsing for permission to use their images. This project was helpfully nudged along by support from the Georgia Tech Center for Urban Innovation.