I confess, when I first wrote out the CDT calculations for Newcombe's Paradox, I assumed that the prediction 'caused' the choice, and got one-boxing as a result.

Then I got confused, because I had heard by then that CDT suggests two-boxing.

Now I'm working on getting a copy of Causality so I can figure out if the network formalism still supports the prediction not being causally binding on the outcome.