Or to use the usual philosophical questions, what is it like to be: - A human brain in a human body - A human brain not in a human body - Half a human brain

Or to use the usual philosophical questions, what is it like to be: - A human brain in a human body - A human brain not in a human body - Half a human brain - Some smaller portion of a human brain I don't think "is me" / "isn't me" is a clean dichotomy. As you lose parts of your brain you're still somewhat you but you're less you than you were.