Virtual Identity Crisis

From a philosophy magazine: "We have been engaged all of our lives in creating a stable sense of our identity out of whatever is thrown at us. We humans are unique among the animals in having a coherent sense of self, and this begins with our appropriating our own bodies as our own. This is our most fundamental human achievement: that of transforming our pre-personal bodies - blood, snot, etc. - into the ground floor of our personal identity...Existential Intuition the sense 'I am this' our appropriation of our own bodies as persons who participate in a collective culture. The essense of human identity lies in this continuuing self-redefinition."

What would SL look like if it wasn't made by humans with a need for that stable sense of identity?

What does it mean that our SL bodies don't have blood, snot, etc?

Do we get so into SL that we think 'I am this' when we are there as our avatars? What does that do to change our relationship to our physical bodies?