I found two statements in the article that I think are well-defined enough and go into your argument:
“The birth rank discussion isn’t about if I am born slightly earlier or later.”
How do you know? I think it’s exactly about that. I have x% probability of being born within the first x% of all humans (assuming all humans are the correct reference class—if they’re not, the problem isn’t in considering ourselves a random person from a reference class, but choosing the wrong reference class).
2. “Nobody can be born more than a few months away from their actual birthday.”
When reasoning probabilistically, we can imagine other possible worlds. We’re not talking about something being the case while at the same time not being the case. We imagine other possible worlds (created by the same sampling process that created our world) and compare them to ours. In some of those possible worlds, we were born sooner or later.
If you are born a month earlier as a preemie instead of full-term, it can be quite convincingly said you are still the same person. But if you are born a year earlier are you still the same person you are now? There are obviously going to be substantial physical differences, different sperm and egg, maybe different gender. If you are the first few human beings born, there will be few similarities between the physical person that’s you in that case and the physical person you are now. So the birth rank discussion is not about if this physical person you regard as yourself is born slightly earlier or later. But among all the people in the entire human history which one is you, i.e. from which one of those person’s perspectives do you experience the world?
The anthropic problem is not about possible worlds but instead centered worlds. Different events in anthropic problems can correspond to the exact same possible world while differing in which perspective you experience it. This circles back to point 1, and the decoupling between the first-person “I” and the physical particular person.
That’s seemingly quite a convincing reason why you can’t be born too early. But what occurs to me now is that the problem can be about where you are, temporally, in relation to other people. (So you were still born on the same day, but depending on the entire size of the civilization (m), the probability of you having n people precede you is nm⋅100%.)
Depending on how “anthropic problem” is defined, that could potentially be true either for all, or for some anthropic problems.
I found two statements in the article that I think are well-defined enough and go into your argument:
“The birth rank discussion isn’t about if I am born slightly earlier or later.”
How do you know? I think it’s exactly about that. I have x% probability of being born within the first x% of all humans (assuming all humans are the correct reference class—if they’re not, the problem isn’t in considering ourselves a random person from a reference class, but choosing the wrong reference class).
2. “Nobody can be born more than a few months away from their actual birthday.”
When reasoning probabilistically, we can imagine other possible worlds. We’re not talking about something being the case while at the same time not being the case. We imagine other possible worlds (created by the same sampling process that created our world) and compare them to ours. In some of those possible worlds, we were born sooner or later.
If you are born a month earlier as a preemie instead of full-term, it can be quite convincingly said you are still the same person. But if you are born a year earlier are you still the same person you are now? There are obviously going to be substantial physical differences, different sperm and egg, maybe different gender. If you are the first few human beings born, there will be few similarities between the physical person that’s you in that case and the physical person you are now. So the birth rank discussion is not about if this physical person you regard as yourself is born slightly earlier or later. But among all the people in the entire human history which one is you, i.e. from which one of those person’s perspectives do you experience the world?
The anthropic problem is not about possible worlds but instead centered worlds. Different events in anthropic problems can correspond to the exact same possible world while differing in which perspective you experience it. This circles back to point 1, and the decoupling between the first-person “I” and the physical particular person.
That’s seemingly quite a convincing reason why you can’t be born too early. But what occurs to me now is that the problem can be about where you are, temporally, in relation to other people. (So you were still born on the same day, but depending on the entire size of the civilization (m), the probability of you having n people precede you is nm⋅100%.)
Depending on how “anthropic problem” is defined, that could potentially be true either for all, or for some anthropic problems.