Funny, I would not have associated one-boxing to mean what you described. I assumed that it only really matters when dealing with a perfect predictor. Apparently I missed some form of "action implies predicability" side of the discussion? In any case, looks like I get to go do some research/thinking. Thanks.

I didn't actually mean that it makes it easier to talk about Newcomb's problem [...]

Ah, okay. Thanks for the clarification. I think my points more or less stand as is but could probably have been less targeted at the Newcomb's problem example.

(Topic branch) Something I personally do dodge issues in terms is to rotate synonyms throughout a discussion to troll for bad assumptions in terms. If anyone gets a "Wait, what?" look on their face it means we may not be on the same page.