Literally Stupid

So Naomi Watts "literally lost half her brain" (Sunday Herald 15.02.09) Really? Did she look under the couch? I often lose things there.
Okay people, forget all the apologists out there who believe that literally is an auto-antonym and is fine to use as a hyperbole, literally literally means in a literal sense or manner : actually literally> literally insane>. If you literally lost half your brain, half your brain would be missing. Or to be more accurate, you would have no idea where half your brain was. I really don't care if Mark Twain and F. Scott Fitzgerald used literally metaphorically, it sounds bloody stupid. Can we all just please stop it now. You sound like an idiot. Literally.
It does beg the question however, how would an actor know if they lost half their brain? Would it really impact their life? Especially as recent scientific study has determined that an actor's brain works something like this: