In order to say there are “more” chaotic worlds, you have to pick a measure to put on the space of all possible worlds.
If you did want to put a measure on the space of all possible worlds, nothing forces you to put more weight on the chaotic ones than the ordered ones.
With a measure, you can give probabilities to things—but as you’ve noticed, those probabilities may not correspond to your current informal notion of probability.
In order to say there are “more” chaotic worlds, you have to pick a measure to put on the space of all possible worlds.
If you did want to put a measure on the space of all possible worlds, nothing forces you to put more weight on the chaotic ones than the ordered ones.
With a measure, you can give probabilities to things—but as you’ve noticed, those probabilities may not correspond to your current informal notion of probability.