Full Idea
If the 'I' is part of consciousness, there will be two I's: the reflective and the reflected. ...but it is unacceptable for any communication to be established between the reflective I and the reflected I, if they are real elements of consciousness.
Gist of Idea
How could two I's, the reflective and the reflected, communicate with each other?
Source
Jean-Paul Sartre (Transcendence of the Ego [1937], I (B))
Book Reference
Sartre,Jean-Paul: 'The Transcendence of the Ego' [Routledge 2004], p.15
A Reaction
If we accept that there are two orders of consciousness (reflective, about itself, and reflected, about the world) it seems reasonable to say that there cannot be an 'I' in both of them. A nice, and intriguing, argument.