Huh. Couple thoughts:

1) Solstice is meant to be scary. (How scary exactly depends on which crowd we're doing it for). "The world may end and it may in fact be dependent on our actions" is a primary point to it.

2) You're on a short list of people who have described the Solstice as actually helping you realize things on an emotional level, which was an intended purpose. So, good to know.

3) On one hand, "Outcompeted by simulated brains in a Malthusian Hellhole race to the bottom"'s probability may not depend that much on our personal actions, and framing the question is useful. But I did find it distracting to notice that the outcome dependent at least somewhat on my beliefs, and also might depend on the collective beliefs of everyone who attends Solstices, and I should take responsibility for that.

I also think it's useful to distinguish between Epistemic Rationality Rituals and Instrumental Rationality Rituals.

4) Re: your other comment about Tarski's theorem - interesting. Kind of wrapping my brain around that now.