Are ‘you’ just inside your skin or is your smartphone part of you?

‘Given how our smartphones have taken over what were once functions of our brains – remembering dates, phone numbers, addresses – perhaps the data they contain should be treated on a par with the information we hold in our heads. So if the law aims to protect mental privacy, its boundaries would need to be pushed outwards to give our cyborg anatomy the same protections as our brains. …’

Source: Aeon Ideas