Jacob Barandes
speaker
7,673 appearances
5 recordings
1 series
first heard Jan 2025
last heard Jun 2025
Jacob Barandes’s voice in public audio — every appearance, attributed to the second.
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Appearances
If you
Want to assign all well formed, reasonable propositions true or false values.
Then we say what you've done is you've picked out one possible world.
A possible world is just the assignment of true or false to all sensible propositions.
And if any of those propositions change from true to false or vice versa, we say that we're talking about a different possible world.
Intuitively, we're supposed to imagine that possible worlds are like complete realities, complete ways that all of the world across all of space and all of time could be.
And once that's all been fixed, then all sensible propositions have a well-defined value.
Um and one of the jobs we're trying to do in science is kind of figure out which possible world is the world that we inhabit by learning which propositions we think are true and which are false.
Even if you've established which possible worlds.
you think is the actual world, there's still this further question about where we are in it.
The notion of a centered world captures this idea that in addition to saying what the possible world is which which possible world is the actual world,
There's there's this further question about what time we're talking about, where we're talking about, which individual we're talking about.
And if you're talking about a possible world that's some kind of multiverse filled with many copies of ourselves, then which copy I am
Is a is not a statement about which world is the true world.
That's been established now, I suppose.
It's a question about where in that world I am, which copy I am, and that's now a question of pure self-locating pure self-locating um uncertainty.
Um it's important to distinguish this notion of possible worlds from the worlds of many worlds.
In the many worlds interpretation of quantum theory.
We imagine we have this universal wave function that is branching into these macroscopic realities that are not interfering with each other.
When you give them enough time, they become sort of independent realities.
Showing 301–320 of 7,673 · page 16 of 384
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