If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
And rightly so. The great majority of people are badly calibrated, can't estimate priors properly, etc. If they tried to calculate probabilities for "many everyday issues" I would bet most of them would land straight in the valley of bad rationality.
Heck, many people here can't do it right. I'm in particular thinking of the recent thread about computing probability of UFOs or aliens.