This is the weekly visible open thread. Post about anything you want, ask random questions, whatever. ACX has an unofficial subreddit (https://www.reddit.com/r/slatestarcodex/), Discord (https://discord.gg/RTKtdut), and bulletin board (https://www.datasecretslox.com/index.php), and in-person meetups around the world (https://www.lesswrong.com/community?filters%5B0%5D=SSC). Most content is free, some is subscriber only; you can subscribe here (https://astralcodexten.substack.com/subscribe?). Also: 1: Reminder that the due date for this year’s book review contest is May 20th. Contest rules here (https://www.astralcodexten.com/p/book-review-contest-rules-2026), submission form here (https://forms.gle/j7fHtDAg3i4di8Rj9). 2: The day after I posted Your Attempt To Solve Debate Will Not Work (https://www.astralcodexten.com/p/your-attempt-to-solve-debate-will), @RatOrthodox announced the launch of the debate-solving attempt he’d been working on. I swear I didn’t know about this or intend to sabotage him. As compensation, I link it here: refutree.com (https://refutree.com/). I can’t review whether it’s good or not, because I didn’t try it, because it won’t work. 3: Several new bans, including Shankar (https://www.astralcodexten.com/p/open-thread-431/comment/250315004), GrimMoar (https://www.astralcodexten.com/p/your-attempt-to-solve-debate-will/comment/250997968), Nicholas Lopez (https://www.astralcodexten.com/p/being-john-rawls/comment/252353458), Andy G (https://www.astralcodexten.com/p/being-john-rawls/comment/230348173). Sometimes Substack blocks people from seeing banned comments, so if you can’t read those it’s not your fault.