What if instead of just getting a new set of breasts and a haircut, the augmentation was much more subtle, what if it was personality? How would you feel if after many dates with a person who just 'gets you, you know?' you discover that it was a software package that augmented the speech patterns, the table manners, the sharp sense of humour and the listening ear served with perfect responses? How would you feel if all of that came in a bundle downloaded for a few hundred dollars? Would you still feel as attracted?

I feel too old for any of that stuff. But if I were younger and on the market, it would, indeed, feel weird as a thought experiment. But I believe it is only a matter of time before things will come to that.

I would call that scenario practical buddhism. Such a future where your whole personality is a mere collage of interchangeable parts for which there is a vibrant market should really drive home the reality that the self is an illusion, that is, the self is ephemeral as everything else in this world. That we change considerably over long periods of time is a fact established by psychological studies measuring personality traits. The only constant is the illusion that we are the same. Narratives about the self are constantly revised to maintain the illusion of constancy.