Per the open thread, it seems that it hasn't been obvious that: yes, you can just create one of these threads if you want to. I decided to make it obvious.
Meta: until now we've been tagging these both 'grouprationalitydiary' and 'group_rationality_diary'. That seemed silly to me, and it was an obstacle to creating the diaries, so I stopped. I wasn't sure which was relevant for the sidebar, so I tested and it turns out it's the underscore version. I also link to the tag instead of the wiki page for the archive, because it doesn't need maintenance. I'd recommend deprecating the archive on the wiki page and just linking to the tag, but I don't yet have a wiki account and my attempt to create one apparently failed.
This is the public group rationality diary for May 5 - 23, 2015. It's a place to record and chat about it if you have done, or are actively doing, things like:
Established a useful new habit
Obtained new evidence that made you change your mind about some belief
Decided to behave in a different way in some set of situations
Optimized some part of a common routine or cached behavior
Consciously changed your emotions or affect with respect to something
Consciously pursued new valuable information about something that could make a big difference in your life
Learned something new about your beliefs, behavior, or life that surprised you
Tried doing any of the above and failed
Or anything else interesting which you want to share, so that other people can think about it, and perhaps be inspired to take action themselves. Try to include enough details so that everyone can use each other's experiences to learn about what tends to work out, and what doesn't tend to work out.
Archive of previous rationality diaries
Note to future posters: no one is in charge of posting these threads. If it's time for a new thread, and you want a new thread, just create it. It should run for about two weeks, finish on a saturday, and have the 'group_rationality_diary' tag.