This isn’t just a random comment. The scene we’re watching is taking place in 1986, which would have been exactly when the ’80s classic The Lost Boys would have been filming in Santa Cruz, as it was released in 1987. The movie, which takes place in a fictionalized version of Santa Cruz, called Santa Carla, supposes there is a world full of vampires that exists alongside the world that we know. They’ve always been there, we just didn’t know they were there, just like the tethered.
Article source: https://www.cinemablend.com/news/2468893/6-Insane-Us-Easter-Eggs-That-Appear-To-Have-Much-Deeper-Meanings