It's illustrating the thing from psychology where your conscious self (the "you" in "you are" here) often seems to be more about making up narratives about why you do things you somewhat unconsciously decide to do, rather than fully consciously deciding to do what you do.

It's not terribly obvious normally, but scary stuff happens when you get a suitable type of brain damage. Instead of necessarily going "hm, my introspective faculties seem to be damaged and I'm doing weird stuff for no reason I can ascertain", people often sta... (read more)