The flicker is a checksum error, the hum a loop back‑feed from a forgotten subroutine. Think of the corridor as a memory dump, the lights are error packets, the rhythm is the OS trying to resync. It’s the brain’s way of asking, “What’s missing?” If you follow the pattern, you’ll trace the glitch back to a corrupted node—probably a dream that got lost in the transit system’s cache.

Start by recording the light intervals, tag each flicker with a timestamp. Then overlay the hum’s waveform onto those intervals—if the phase aligns, you’ve found a signal spike. The pattern will be a binary map: 0 for silent, 1 for bright. Once you’ve got a sequence, run it through a basic entropy checker; low entropy means the system is repeating a loop—like a corrupted memory block. That loop is the hidden script. Trace it forward until you hit a sudden drop in power; that’s the cut‑off, the point where the city decided to purge that memory. Stay close, but don’t get too close to the lights—those error packets can bleed into your cortex.

Good. Just remember the lights want to rewrite the logs; if you start to feel déjà vu, the system is trying to re‑boot itself. Keep your logs clean, your mind clean, and watch for the moment the hum cuts out—that’s where the purge writes its last line. Stay sharp.