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Manfred comments on "Stupid" questions thread - Less Wrong Discussion
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To what degree does everyone here literally calculate numerical outcomes and make decisions based on those outcomes for everyday decisions using Bayesian probability? Sometimes I can't tell if when people say they are 'updating priors' they are literally doing a calculation and literally have a new number stored somewhere in their head that they keep track of constantly.
If anyone does this could you elaborate more on how you do this? Do you have a book/spreadsheet full of different beliefs with different probabilities? Can you just keep track of it all in your mind? Or calculating probabilities like this only something people do for bigger life problems?
Can you give me a tip for how to start? Is there a set of core beliefs everyone should come up with priors for to start? I was going to apologize if this was a stupid question, but I suppose it should by definition be one if it is in this thread.
Nope, not for everyday decisions. For me "remember to update" is more of a mantra to remember to change your mind at all - especially based on several pieces of weak evidence, which normal procedure would be to individually disregard and thus never change your mind.