Zorion Oscura (the First Foreman) wants to dig down, in order to find the ‘truth’ of what is below. During the winter masquerade event, a time bubble with Zorions memory of going to the periphary fog was observed, and they were influenced to turn around before reaching the edge of the world. The digging, which could cause huge issues and result in a lot of death, is a way to sate the desire to know the truth that Zorion missed out on way back when. So far the Collective seems ok with the experiment to a degree? Bigger issue is that Zorion is dangerously curious/philosophical, and will seek “truth” by any means necessary, so their eyes will likely be set on things that are more extreme and I doubt Doctor Compeer can talk them out of things for much longer (although she is trying, has spent multiple BGAs with them).
The Garian penance has also been lifted, which will shake things up even more for sure!
As a note, Doctor Compeer is fiercely protective of Zorion, so maybe trying to reason with them first would be preferable, although of course not mandatory!