Dancing David
Penultimate Amazing
So, ask yourself if you can determine if I'm conscious or a mind controlled alter personality in 'sleep walking' mode. See the problem? When the possibility of mind control is included the situation becomes really tricky. Ordinary, without such mind control, we usually take for granted (except for solipsism) that all people who behave awake really are conscious. With the possibility of mind control the picture is not so simple.
Yup and you just assume that you aren't under the Mind Control of the Smurf Cabal because that is what they planted in your memories.