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gwern comments on My Wild and Reckless Youth - Less Wrong
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Yes, that's pretty much what retrodiction is. It's not as good as prediction since you can come up with theories over-fitted to exactly the past (a big problem with financial retrodiction: people routinely find some complex strategy or apparent arbitrage when running over the last 30 years of market data, which disappears the moment they tried to use it), but if predictions are unavailable, at least retrodiction keeps you concretely grounded.
I'm not sure I would use God as an example. Theists like Plantinga have done a good job showing that they can come up with a version of God + concepts like 'free will' which is logically consistent with any observation, so neither retrodiction nor prediction matters for their God.
I love it. Retrodiction is awesome.
I think I broke the free will God argument. The idea that evil is evidence that God gives us free will is contradicted by the existence of evil. What do you think?
In general, if someone thinks they've said something that is both new and valuable about the theodicy: they haven't.
Looking at your link, I have no idea what you're trying to say.
Well, I reworded my point as "The idea that evil is evidence that God gives us free will is contradicted by the existence of evil" but if you don't think it's going to be interesting, don't bother.