Vedroid & Brickmione
Vedroid Vedroid
Brickmione Brickmione
Vedroid Vedroid
Hey, spotted the grid pattern of that downtown transit hub – got a theory on how its traffic lights could be synchronized to create a covert data channel.
Brickmione Brickmione
Interesting. Which intersection are you talking about, and what kind of data bits do you think the signals could carry?
Vedroid Vedroid
It’s the corner of 5th and Main, the one where the red lights have a slightly irregular timer. A single on–off pulse can encode a bit – think a 1 when the light stays green a fraction longer than usual, a 0 when it cuts it short. If you line up the pulses from each corner, you can stitch a slow stream of data – maybe a few hundred bytes a day, enough for a tiny key or a covert beacon.
Brickmione Brickmione
That’s a neat hypothesis, but those light cycles are usually controlled by the same central node – any tiny tweak would probably ripple through the whole network. Plus, a single half‑second shift isn’t obvious unless you’re watching the logs, and if you try to read the pattern out in real time you’d need a camera rig that’s already in sync with the traffic controller. Still, it’s the kind of subtle urban cipher that makes me want to sketch the whole intersection grid and see where the logic actually breaks.