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.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Here is a list of papers about the talks, if you want to get an idea without attending.
I've read most of those I care to, but there is always something about face-to-face discussions that is lost in print.