Raymond Tallis defends personal identity from those who say the self is an illusion.
Towards a Positive Account of the Self
We need also to develop a positive idea of the self. At the very heart of the notion of a self worth having is that of an accountable agent enduring over time. This has different aspects. We want an intelligible account of our feeling that we have temporal depth, that we are truly connected with the past, that we are essentially the same entities over time, that we have memories that are truly of experiences we have had, that there were certain events that were our actions for which we remain answerable, that we have prudential concern for a future that is our future.
Okay, as an intellectual scaffold, this all makes sense. There are clearly facts in your past precipitating facts about your present that will propel you into the facts embedded in the future that either exist "in reality" or reality itself is on par with a sim world, a dream world, a world in which what you think is true about the past, present and future is really just an illusion. Or wholly embedded in a determined universe.
There is just no getting around how, in many crucial respects, "I" is anything but a figment of our imagination.
But how do we go about accounting for what we account for in others when the discussions shift into accountability as a moral judgment? We can point to something that someone has done and hold her accountable in the sense that she is responsible for the consequences involved. But if we can't agree on whether the consequences themselves are necessarily, inherently good or bad then accountability itself becomes a subjective assessment rooted in, well, that which I suggest or that which you suggest.
There are many other aspects of selfhood – in particular those related to the identifying marks (of physical appearance, of traits, of knowledge, of office, of relationships) by which others recognise us and entertain expectations with respect to us.
Well, they will do pertaining to certain aspects of our interactions able to be pinned down as true for all of us. But other aspects are rooted in moral and political prejudices that are always subject to change given new experiences in our lives. Here expectations can be entirely problematic depending on the circumstances over time.
At the heart of the sense of the self is a kind of tautology, an existential iteration: ‘That I am’; or ‘That I am [this]’. This Existential Intuition is connected with the intuition ‘That I am the same thing over time’; and ‘That I am of such and such a nature’. All three are woven into the notion of personal identity.
Here, for someone like me, the gap between this as an intellectual assessment of "I" and "I" out in a world bursting at the seams existentially with contingency, chance and change always puts the tautological "I" in a situation/state where it is ever poised to reconfigure with regard to that which is of particular importance in our lives: the behaviors we choose.