That's not what I meant. I found a billboard with a sequence of numbers and letters, so I was wondering if they have a use, and where to use it.
Yep, that's what I mean. Have you noticed that picking up a bottle sometimes changes day to night or vice versa?
EDIT: Either of these things, or are you talking about something else?
I don't remember the billboard saying write before the thing so I don't know if that's what it was or if it was something else but thanks for sending that video example.
