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Steffee's avatar

Thanks for the shoutout!

I actually never understood the idea that with the SIA, upon waking, SB learns new information.

However, I do tackle the SIA directly here:

https://ramblingafter.substack.com/p/highlights-from-the-comments-on-the

(You can skip to the "Refuting the Doomsday Argument section")

This one's even more subtle: There are many cases we can look at where the SIA makes perfect sense and holds mathematically. But I think some people try to over-generalize it. When asking anthropic questions, it seems extremely easy to make mistakes when setting up your assumptions - for instance, the orphanages examples.

(This won't make sense until you've read the post, but: There's the variation where one orphanage is known to be fake and the other real. There's another variation where one is known to have been all-boys and the other all-girls, and John is a male. I made the mistake in believing these variants are analogous, but they're not!! In an exchange with Joseph Rahi in the comments, I actually ended up arguing incorrectly against the SIA for a while.)

I think one intuition that may help is this: Observer selection effects are real, they're just a matter of treating observers like you would any other probabilistic object. As far as I'm aware, any example with conscious observers has an equivalent with objects. For example, swapping orphans to candy made the above difference between variants much more obvious. For another example, you could replace SB with a paper that says "I give Heads an X% chance". How do you decide how "correct" that paper was? How you count determines whether the Halver or Thirder strategy is better, and neither requires the idea of anything new being learned by the piece of paper after the experiment begins.

Ben's avatar

I got like 2k words into a blog post about whether or not “hard times create strong men, strong men create good times, etc…” based on our Twitter argument.

But unfortunately I don’t have a 30 day blogging residency to finish it… maybe after Manifest DC I’ll have the time to complete it 😭

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