Nice catch, but I carefully picked the image from dozens to not refer to aliasing error.

https://en.wikipedia.org/wiki/Shape_moir%C3%A9

More complex line moiré patterns are created if the lines are curved or not exactly parallel. Moiré patterns revealing complex shapes, or sequences of symbols embedded in one of the layers (in form of periodically repeated compressed shapes) are created with shape moiré



The example of Moiré was a metaphor - one for finding hidden, ethereal meaning between the lines. Even in the aliasing error the sophisticated patterns convey information, although this information on the surface (pun!) seems to carry no relationship to the subject at hand. Mathematical analysis of the pattern may or may not reveal connection to the subject whatsoever. Although by definition there always is connection between things connected to each other. Quantitave measures may not be enough - you may need consciousness to interpret that on a whole other operative level.

Anyhow now that you preferred to take it to the concrete domain, it serves as a reinforcement to the more discernible meaning of the trendline. Opposite of what you wanted to demonstrate, there is information to be found when you apply the chaotic looking layers over each other appropriately.

Thanks for the challenge, I really enjoy this deviation to the occult