This book offers an extensive historical, philosophical and ethical discussion on the role of autonomous technologies, and their influence on human identity. By connecting those different perspectives, and analysing some practical case studies, it guides readers to dissect the relationship between machine and human autonomy, and machine and human identity. It analyses how the relationship between human and technology has been evolving in the last few centuries. Last, it aims at proposing an explanation on the reason/s why humans have been keen on developing their own autonomy's perfect avatar.