Probably he meant an actual "partner", meaning tricking yourself on purpose to a certain degree.
Even if you are talking to multiple people you could imagine keeping tracks of your key facts and interests, maybe use data mining from actual conversations to auto-suggest answers, automatically check out your social medias etc.
Even if you are talking to multiple people you could imagine keeping tracks of your key facts and interests, maybe use data mining from actual conversations to auto-suggest answers, automatically check out your social medias etc.