In Zir travels through space and time, the Doctor has to solve numerous amazing problems, many of which have applications to our everyday lives. This book, written by one of the Doctor’s biggest fans, explores the Doctor's distinctive view of life, ethical, spiritual, and scientific after centuries of regeneration. 

As a Time Lord, the Doctor is bound by the universal code of noninterference in the lives of different species on different planets. Zir finds that non-interference can be disastrous--but because of free will and unpredictability, interference can bring about calamitous consequences. Lewis probes deeper into how the Doctor copes with this harsh dilemma in different episodes of the show, and how these experiences went on to shape the unique personalities of Doctor Who. 

The Doctor never has any doubts about Zir own identity. Yet the various regenerations have distinctly different personalities, and some regenerations are forgotten. The Doctor raises in acute form the philosophical issue of what constitutes personal identity: who are we at our core? Join us as we dart among the stars, exploring the philosophical theories and questions of personal identity, free will, individuality, regeneration and fate.