Visual password (Score 1)

With humans being mostly visual as for memory, why not elaborate on that for authentication? MS Picture-password goes along that way, it is already compromised somewhat on touch-screens, but that is a temporary technical problem. Ask me to select any old family-pic out of 20 slightly altered ones. Ask me if the pic of my wife is real or shopped. Ask me to pick which sunrise I saw in 1980 from Ibiza. You can know a lot about me, but never exactly what I have seen. And I remember quite well what I have seen, especially if I have to set/designate a specific picture as a personal lock.