Is it possible (I’m not sure it makes sense to ask about easy) under our physics to build an intelligence that optimizes (or at least a structure that propagates itself) according to some metric other than the Born Rule? If not, then it should be anthropically unsurprising that we perceive probability as squared amplitude, even if there is no law of physics to that effect. Otoh if it is possible, then you could have a TOE from which you can’t derive how to compute probability, and there’s nothing wrong with that, because then there really is another way to interpret probability that other people in the universe (though of course not in our Everett branch) may be using.
Is it possible (I’m not sure it makes sense to ask about easy) under our physics to build an intelligence that optimizes (or at least a structure that propagates itself) according to some metric other than the Born Rule? If not, then it should be anthropically unsurprising that we perceive probability as squared amplitude, even if there is no law of physics to that effect. Otoh if it is possible, then you could have a TOE from which you can’t derive how to compute probability, and there’s nothing wrong with that, because then there really is another way to interpret probability that other people in the universe (though of course not in our Everett branch) may be using.
Fair rephrasing?