Nope! Parfit’s Hitchhiker is designed to show exactly this. A CDT agent will desperately wish for some way to actually commit to paying.
I think some of the confusion in this thread is what “CDT with precommittment (or really, commitment)” actually means. It doesn’t mean “intent” or “plan”. It means “force”—throw the steering wheel out the window, so there IS NO later decision. Note also that humans aren’t CDT agents, they’re some weird crap that you need to squint pretty hard to call “rational” at all.
It’s easy to frame Newcomb’s problem such that there’s no opportunity to precommit (and, CDT generally doesn’t see any REASON to precommit there).
Can you give an example of a version of Parfit’s hitchhiker where CDT with precommitment will not see a reason to precommit to the deal?
Nope! Parfit’s Hitchhiker is designed to show exactly this. A CDT agent will desperately wish for some way to actually commit to paying.
I think some of the confusion in this thread is what “CDT with precommittment (or really, commitment)” actually means. It doesn’t mean “intent” or “plan”. It means “force”—throw the steering wheel out the window, so there IS NO later decision. Note also that humans aren’t CDT agents, they’re some weird crap that you need to squint pretty hard to call “rational” at all.