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soferio | 1 year ago

https://en.wikipedia.org/wiki/Abductive_reasoning

Is abductive inference synonymous with bayesian inference?

discuss

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randcraw|1 year ago

I like to think of abductive reasoning as the basis for science that explains natural processes that happened in the past -- like astronomy and geology and evolution -- where experiments are too big to conduct or processes too slow to observe in real-time. So we propose mechanistic explanations for nonobvious outcomes like the formations of stars, or motion of large land mass via plate tectonics or glaciation, or long-range organism speciation over millennia. That's the role for abduction, to explain how all that happened.

User23|1 year ago

No, but agreement with priors is one way one might choose between possibilities.

For example suppose you go outside and the streets are wet. Perhaps it rained, or perhaps someone drove a fire truck around spraying water all over the streets. You might select the former because of its higher prior probability.