Epsilon
I'm not sure if this has already been discussed, but recently while hunting at the galelio observatory I found a couple things that I find interesting.
Firstly the symbols on the door, which are often associated with the spider web mystery, are almost identical to the real life counterpart(Griffith observatory). I find this intriguing in a game full of riffs on pop culture and history. So why keep it the same? Furthermore looking into the history of the real life counterpart, I found that early telescopes used spider webs as a crosshair to accurately scan and pin point interesting parts of the sky. As far as epsilon goes, as far as I've been able to read(so please correct if wrong), most people believe epsilon is just a random name meant to show how cults make themselves out to be more spiritual than they are. But I believe it actually derives its name from Uranus primary ring, which goes by the same name. Considering the observatory's orbit lines only shows Uranus, as well as the joke we see at the hippie camp. I would be interested to see if there's more history behind the planet or it's rings that might help the investigation.
Side note, I mentioned I find it weird for the observatory's doors to be nearly identical to real life even when the game has no issues making fun of history or pop culture. The Altruist also get their name from a real life "religion" or spiritual practice.
Thanks for reading, please let me know your thoughts.