Thanks for the beautiful thought and warm welcome... 'the fluidity of our identity' is such that with every experience, every new knowledge, and every new thought, we add to (and sometimes subtract from) who we were before them. Hence like the philosophical adage that a man never steps on the same water twice because, after the first step, neither the man nor the water remains the same. Simply put 'who we are' evolves every minute, however, in very unnoticed ways until it becomes too obvious to be missed.