Virtual reality is the representation of possible worlds and possible selves, with the aim of making them appear as real as possible - ideally, by creating a subjective sense of "presence" and full immersion in the user.

The notion of a conscious model of oneself as an individual entity actively trying to establish epistemic relations to the world and to oneself, I think, comes very close to what we traditionally mean by notions like "subjectivity".

Subjectivity means to catch yourself in the act.

As far as inner action is concerned, we are only rarely truly self-determined persons, for the major part of our conscious mental activity rather is an automatic, unintentional form of behavior on the subpersonal level.

Subjectivity is an ability, the capacity to use a new inner mode of presenting the fact that you currently know something to yourself.

The self is not a thing, but a process.

For a human being, to possess a consciously experienced first-person perspective means to have acquired a very specific functional profile and distinctive level of representational content in one's currently active phenomenal self-model: It has, episodically, become a dynamic inner model of a knowing self.