This is an experiment in short-form content on LW2.0. I'll be using the comment section of this post as a repository of short, sometimes-half-baked posts that either:
- don't feel ready to be written up as a full post
- I think the process of writing them up might make them worse (i.e. longer than they need to be)
I ask people not to create top-level comments here, but feel free to reply to comments like you would a FB post.
I think a bunch of discussion of acausal trade might be better framed as "simulation trade." It's hard to point to "acausal" trade in the real world because, well, everything is at least kinda iterated and at least kinda causally connected. But, there's plenty of places where the thing you're doing is mainly trading with a simulated partner. And this still shares some important components with literal-galaxy-brains making literal acausal trade.
Common social knowledge has predictive power and causal pathways to update the knowledge (and others' knowledge of the social averages which contain you). Acausal trade isn't even sharing the same physical universe - it's pure theory, with no way to adjust over time.