This book is less about sadness than one might imagine—although it is worth storing a box of facial tissue next to the bedside table, just in case negotiating complex family relations in a dystopian (?) future tugs on the old heart strings a bit. What are emotions? What is agency? How much control do we really have over our lives, and how much do we really crave? And how much kinship might we some day share with the world of “inanimate” objects? A charming Roomba with a love of Debussy is ready to guide you through these questions (and more).