I have not followed this thread in all of its detail, but it sounds like it might be getting caught up on the difference between the underlying ratio of different quantum worlds (which can be expressed as a probability over one’s future) and one’s probabilistic uncertainty over the underlying ratio of different quantum worlds (which can also be expressed as a probability over the future but does not seem to me to have the same implications for behavior).
Insofar as it seems to readers like a bad idea to optimize for different outcomes in a deterministic universe, I recommend reading the Free Will (Solution) sequence by Eliezer Yudkowsky, which I found fairly convincing on the matter of why it’s still right to optimize in a fully deterministic universe, as well as in a universe running on quantum mechanics (interpreted to have many worlds).
I have not followed this thread in all of its detail, but it sounds like it might be getting caught up on the difference between the underlying ratio of different quantum worlds (which can be expressed as a probability over one’s future) and one’s probabilistic uncertainty over the underlying ratio of different quantum worlds (which can also be expressed as a probability over the future but does not seem to me to have the same implications for behavior).
Insofar as it seems to readers like a bad idea to optimize for different outcomes in a deterministic universe, I recommend reading the Free Will (Solution) sequence by Eliezer Yudkowsky, which I found fairly convincing on the matter of why it’s still right to optimize in a fully deterministic universe, as well as in a universe running on quantum mechanics (interpreted to have many worlds).