That said, being a statistical or philosophical Bayesian does not require one to believe this cognitive science hypothesis. If Bayesian cognitive science were soundly disproven tomorrow, http://www.yudkowsky.net/rational/bayes/ would still stand in its entirety.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.