"SimSensei can work out whether you’re exhibiting signs that indicate depression"

Im not sure I totally buy it - Im sure it can pick up the signs with 90% accuracy but how often do the signs actually correspond to a clinically depressed person. Just because your in a down mood at one moment does not mean you are depressed - depression is just a lot more complex than that. Im not sure that this would be of much use in accurate diagnosis although it seems like pretty interesting tech.