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 now have four teams registered to do adversarial collaborations. The contest isn’t officially on until I get five. If you’re interested and haven’t coordinated already, you can coordinate teams below.