Someone on here turned me onto the GCP (Global Consciousness Project) found here https://gcpdot.com/, I don't know much of the science there but that notion of measuring network synchronicities is a very interesting notion. I suspect a way it's spurned on by algos on social media (that are 90% curated and closely monitored, so a very top down approach to trying to create a "trending" sentiment), and I serendipitously connected that notion with a twitter account bot I found months ago simply called "Dreamt" that will just periodically go through periods of retweeting every mention of "I dreamt of" https://twitter.com/I_dreamed_of or maybe just the word "dreamt".
I love dreamposting and always find it interesting, but sometimes you can find elements of shared sentiments in these networks as it spams out all these tweets. Of course in some ways a reflection of sentiment in the conscious will bleed into the unconscious, but it does bring to mind an interesting question of what ways there is a shared unsconsciousness, and how it could be measured in any meaningful way.
What does our shared unconsciousness look like, and what could you glean about it? The conscious and unconscious are tightly linked and impact each other greatly. Of course trying to parse something so incorporeal seems largely impossible, but perhaps tools like this could give an inkling of insight.
Some disclaimers: I should probably read more about the GCP itself to understand its goals and how it works, and that twitter account is very spammy, and occasionally pornographic just due to its raw nature of retweeting anything with a commonly used phrase