Article voiceover
After 36,000 hours, you've begun to understand that some of the people who left you aren't coming back. So you walk around the lake where dozens of wrecked planes sit on the water's floor. Some of those wrecks are ghosts. But some aren't because ghosts only serve as ghosts when they're still remembered by the living. Someday, you'll forget those beloved people who've forgotten you. Or maybe you won't.
Such lingering sadness that we can be forgotten and yet not forget...
Yes. Yes. Memory. Some people exist only in memory. They’re always there. Like cognitive ghosts.