We have to go deeper.
—Cobb in Inception, a film by Christopher Nolan, 2010
This book has been a labor of love, written during nights, weekends, and occasional time off. I have willingly put that yolk on myself, but my wife, Iwona Bialynicka-Birula, did not . . . she endured nearly one year of missed hikes, social jet lag, and a silence curfew “because I have to write.” Thank you for your patience, darling—as I promised in the acknowledgments for Programming Windows Identity Foundation back in 2011: No more books for a few years!
This book would not have happened at all if Devon Musgrave, my acquisitions editor, would not have relentlessly pursued it, granting me a level of trust and freedom I am not sure I fully deserve. Thank ...