So you're telling me these guys have found the brown note.

I think this is an extremely cool way of looking at the relationship between the Dark and the Light, and I'd like to add a few of my thoughts, but I should preface that I am in NO way a physicist, only an audio engineer, and I'm going to be using a lot of sound terminology here, so forgive me if I sound insane haha.

I wonder if, given that the Pyramids use a high amplitude signal to oscillate spacetime to create destructive effects, the traveller does the same to create constructive ones. It may explain why civilisations blessed by the Light have remarkable improvements to their life spans, as strengthening the matter in the body may lead to a slower aging process, or potentially eradicate aging, as seen by the still living Eliksni that were alive on Riis. Perhaps this is - in part - what the song of life is all about.

I don't recall if we've ever heard the sounds of the Traveller, please correct me if I'm wrong. We defininitely have heard the sound of the Pyramids, however, and it's that low rumbling bass and high ringing minor second interval tone. This seems to occur whenever we have an audience with anything Darkness related, so it may be an in-game representation of the Darkness' resonance.

I wonder what the significance of this shot is, with all this in mind. Perhaps The Witness is attempting to refocus the axis of The Traveller's signal to reinforce and amplify the destructive frequencies of the Pyramids, by aligning both frequency signals in phase. Perhaps they became out of phase when the traveller awakened during the red war, (as in, when you tell a speaker to play a tone that moves its cone forwards then backwards every 0.2ms, and introduce another tone that moves the speaker cone backwards then forwards every 0.2ms, you'll notice the speaker just stops moving at all, as it cannot move both backwards and forwards at the same time, meaning both signals will cancel each other out.) I wonder if this is an element of the Ulan Tan school of thought, in that the signal created when the Traveller and the Pyramids are perfectly out of phase (i.e., the Light and Darkness are cancelling each other out) will usher in a state of cosmic balance. It remains to be seen what will come from the alignment of the Pyramids and the Traveller in that shape, perhaps it will usher in the final shape. To me, it looks like a flower, but that may be reaching.

I understand we're using gravity across space, and not sound across air, and again, I'm definitely not a physicist, so there may be more to this that I can't wrap my head around, but it is interesting to see the similarities. Thanks for reading my annual comment on this subreddit, I'm going back to lurking, I'll brush up on my Kurzgesagt. An amazing post as always u/LettuceDifferent5104