From economist and science fiction aficionado Brad DeLong’s Semi-Daily Journal:
I have never been a strong believer that there is a single “I”. Those times when you get in the car to go to the grocery store, and find ten minutes later that you are pulling into your office parking lot: who–or what–has been driving the car in the meantime?
There is a story that Neils Bohr’s wife once at the start of a party sent him upstairs to change his tie; an hour later she found him, asleep, in bed; taking off the tie had triggered the going-to-bed subroutine[?] reflex[?] entity[?] and had overwhelmed the express conscious purpose. I remember author David Brin once saying that he could not switch from finger-typing to voice-writing, because the raconteur who spoke through his mouth was vastly inferior at plot, characterization, and structure to the writer who communicated through the hands.