Note that the real world contains many Newcomb-like problems. People do in fact go around making decisions that depend on their beliefs about other people’s decision algorithms.
I disagree, see here for why. (I think “decisions that depend on their beliefs about other people’s decision algorithms” is too weak to get you a Newcomblike structure.)
I disagree, see here for why. (I think “decisions that depend on their beliefs about other people’s decision algorithms” is too weak to get you a Newcomblike structure.)