I ended Chapter 1 by arguing that technology rests at the heart of our existence as human beings — there is no being human without technology. This is an extreme claim, but by better understanding technology and its effects it appears to be true; in the same way that we cannot understand domesticated dogs without human contact, we cannot understand humans independent of technological effects. In Chapter 3, I want to focus more intently on the nature of those effects, but first comes a question, one that always shows up late to the discussion: what is technology?