Let's look a little bit further down the road, say 100 or 200 years. If the computer is implanted in my head, can you compel me to give you the data in it? What if the computer is made partly of cells? Just how tightly integrated do I have to be with the storage device before it's part of the private, protected sphere of my personal consciousness?

I don't mean to be frivolous. As we become ever more dependent on cloud storage and mobile devices as extensions of our memories and our capabilities, we're eventually going to have revisit the legal boundaries of our personhood.

My communications with my attorney are subject to attorney-client privilege. It's almost like the attorney is considered to be a subprocess of me when he is thinking about my problems. We correctly see it as being in the public interest to allow me to communicate with my attorney without hindrance. Why shouldn't my communications with myself be given the same privilege?