Looks like a reflection to me. The disappearing light on the left, reappear on the right might be due to layers on the reflecting surface and that surface shifting/moving. I'll watch again. Rewatched. Still looks like reflections. Multi layered reflecting surface slowly tipping and rotating till out of position to reflect. Lights fade in rank and number till out of position. Makes sense in my head.
I agree. Looks like someone is filming through a window, moving strings of Christmas lights (or similiar) around so that they "dissappear". The "formation" is because they are attached to something to keep them in line.
(post is archived)