The seashell scene in that movie is it what pushes it over to a great movie. They don't explain it, they don't know it, it's just a thing that people have to accept, qnd a lot of people can't. I kinda never thought too much about it, i just accepted it as this future thing, but i read things like you use it as a bidet, like one is water, maybe one is soap and the last one air to dry. Making them disposable never made sense to me, since they talked about the three seashells, as if you have to use it in combination or something. Anyway, i remember seeing an interview with Silvester Stallone and they asked him about the seashells, and he was like: idk, i assumed you use them like chopsticks and pull the shit out. I was kinda flabbergasted, because he has either never seen chopsticks or seashells