Aubrey dedicates this book as follows: “To the tens of millions whose indefinite escape from aging depends on our actions today.”

Michael dedicates this book as follows: “To the two tenders of the flames that have inspired me throughout this work. To April Smith, for erupting, like Athena, out of the secret depths of my mind, raining Greek fire on my Manichee heart, reigniting smoldering embers I had thought long extinguished, and opening up the promise of a shared indefinite tomorrow; and to Dr. Aubrey de Grey, for tirelessly and courageously bearing Promethean fire to a world yet shivering under the winter of age-related death and decay, kindling the sparks that we must fan into a blaze that will cast out its obscuring darkness and melt its frozen grip.”