From my perspective, a belief needs to be about empiric facts to have a probability attached to it. I need to be able to clearly describe how the belief could be tested in principle.
In addition to beliefs about empiric facts there are also beliefs like "Nobody loves me." that aren't about specific empiric facts but that still matter a great deal.
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.