My understanding comes from predictive processing + friston free energy. My sense of the brain is it creates expectations of the world based on prev input, then compares that to new input. If the expectation and the input differ, you experience surprise (ie a prediction error).
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I know some Bayesian rationalists had a tendency to use S2 to crunch probabilities and make predictions verbally, but when I say rationalists want to get good at making predictions, I mean more than that. I'm curious to hear more about what you meant!
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Replying to @coponder @reasonisfun
Read
@DavidDeutschOxf"s Fabric of Reality (or Beginning of Infinity should work) and he explains using Karl Poppers epistemology that science is not fundamentally about prediction and some things are not predictable.3 replies 0 retweets 1 like -
Replying to @bnielson01 @coponder and
I doubt most things are tractably predictable. Jeff Hawkins is on the wrong track when he guess the brain's main function is prediction.
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I'd love to hear more on what you think the brain's main function is! The thing is, what you (and Lulie and Deutsch) are saying is not incompatible with the brain being built on tiny prediction events - those prediction events don't have to be about *reality* though.
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The brain probably does a lot of things and prediction may be one of them. But you didn't make that claim. You claimed something *much* stronger namely that rationality is about prediction. The fact that the brain happens to make predictions doesn't imply your claim on its own.
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Replying to @bnielson01 @coponder and
You are conjecturing that because the brain makes predictions and because the mind can be rational that it is the case that rationality arises from prediction. But explain why that is the case?
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I wasn't conjecturing that, and I think you've misunderstood much of what I've said so far. I encourage you to go back and reread looking for a different interpretation.
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I encourage you to explain yourself further instead.
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If you are interested in untangling this disagreement, send me a DM saying so, and I'll kick it off with some questions so we can start from scratch with an easier medium. (I do think we can learn something from each other.)
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(If it helps, I *am* going to read BoI just so I have familiarity how you and other fans of Popper/Deutsch are using particular words within the framework. Like, I think our disagreement is likely stemming from words like Rationality, Prediction, etc, meaning diff things to us.)
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