Identity = "person".
Etymology of person = "per sona" = "behind a mask".
Are you the same person at the office as you are in the nightclub? Are you the same person at Christmas Dinner that you are at a working lunch?
A person's identity is fluid depending on what mask they're wearing at a given point; or the sum total of all the masks they wear.
Without semantics, arguments bear no meaning.
No matter how much you try to make a dog look like a duck, the dog will still look like a dog to everybody -- except, perhaps, for those that dressed up the dog like a duck.
Like most species, QR codes will continue to thrive in a few environments where they have footholds:
- the asian tigers where they've been used for 20 years,
- and in English-speaking tech geek designer communities to appease their curiosity and amusement.
They'll probably return in a decade or so for one or both of the following two reasons:
- Robots will use them, and robots will be around us all the time — we may even be transhuman enough by then to use them ourselves
- In an ironic way, like on T-Shirts and bumper stickers