Dream of child, person

Got a nightmare last night. The first in a long time. To explain simply, one day, people looking by the horizon by North East, started to instantly and permanently vanish. No need to be outside, it would occur even when looking behind a window. No one could tell why it started or what was behind this phenomena but a saying went by: "Don't look North East, because that's where the sun goes." overtime, people would have some device on them that would vibrate and send an alarm when they're on dangerous zone, but as you guess, it's just a band aid on a broken leg. And it would target anyone looking, evenly, so child, old people,... anyone. In the nightmare, there was the phase where it started, and no one really understood what was going on, then the phase where people where progressively used to it, but started to breakdown, with even some, looking there with defiance (with the consequence you imagine). And the thing is that the vanishing wouldn't produce any sound. So you could talk to someone, look away for one second and that person would be gone without any trace. And when you don't see someone, you'd be immediately thinking that either they vanished or just walked away.Not really a happy scenario. And at time, I had a freeze frame of the exact moment someone looked, and basically their body partly was vaporized during that frame.