This is the bi-weekly visible open thread (there are also hidden open threads twice a week you can reach through the Open Thread tab on the top of the page). Post about anything you want, but please try to avoid hot-button political and social topics. You can also talk at the SSC subreddit or the SSC Discord server – and also check out the SSC Podcast. Also:

1. I’m traveling so I failed to get in all your meetup time/place change requests in time. Sorry Minneapolis, hope you were able to work something out despite my poor response time. Zurich is changing locations to The Sacred/Vegelateria at Müllerstrasse 64. Pittsburgh was a total coordination disaster, sorry, they are going to try again 6 PM 10/19 at 804 Anaheim St. Darmstadt is now scheduled for 2 PM 10/20 at Wilhelminenstraße 17. And Princeton is having a partly-SSC-affiliated effective altruist meetup 9/23 which a few prominent EAs from the Bay Area will be attending, see here for details. I will keep updating the city meetups list with the latest changes and information as I get it.

2. Of the two meetups I’ve announced on the blog so far, Boston had ~140 people and NYC had ~120. If you’re organizing one of these meetups (highlighted blue on the list), in a city about the same size as those, please be prepared for a similar-sized turnout. Also, if you have a local group with regular meetings, please bring a signup sheet so interested meetupgoers can get on your mailing list.