Where is the boundary between your phone and your mind?

As our online existences become less distinct from 'real life', experts raise concern about the growing power of big tech

Many of the boundary lines in our lives are highly literal, and, for the most part, this is how we've been trained to think of boundaries: as demarcations shored up by laws, physical, legal, or otherwise, that indicate exactly where one thing ends and another begins. Here is the border of your property; here is the border of your body; here is the border of a city, a state, a nation - and to cross any of these boundaries without permission is to transgress. But one of the most significant boundary lines in our lives is not this way, and one piece of ubiquitous technology is making this line increasingly permeable and uncertain, at a cost that we may only be starting to comprehend.

Here's a thought experiment: where do you end? Not your body, but you, the nebulous identity you think of as your "self". Does it end at the limits of your physical form? Or does it include your voice, which can now be heard as far as outer space; your personal and behavioral data, which is spread out across the impossibly broad plane known as digital space; and your active online personas, which probably encompass dozens of different social media networks, text message conversations, and email exchanges?