CDT agents perform poorly in Parfit’s hitchhiker dilemma if they can’t bind themselves to act a certain way in the future, and perform well if they can make binding commitments. For an example of a problem where CDT agents perform poorly regardless of whether they can make binding commitments, see retro blackmail in https://arxiv.org/pdf/1507.01986.pdf.
CDT agents perform poorly in Parfit’s hitchhiker dilemma if they can’t bind themselves to act a certain way in the future, and perform well if they can make binding commitments. For an example of a problem where CDT agents perform poorly regardless of whether they can make binding commitments, see retro blackmail in https://arxiv.org/pdf/1507.01986.pdf.