Whatâs different about that machine is people have used modern electronics to give a higher ratio of near misses. That machine is going bar, bar, lemon. Bar, bar, grapefruit, way more often than normal machines, and that will cause heavier play. How do you get an answer like that? Easy. Obviously, thereâs a psychological cause: That machine is doing something to trigger some basic psychological response. If you know the psychological factors, if youâve got them on a checklist in your head, you just run down the factors, and, boom!, you get to one that must explain this occurrence. There isnât any other way to do it effectively. These answers are not going to come to people who donât learn these mental tricks.