Why Was Slate Star Codex Deleted, and Where Did It Go?

Updated

Slate Star Codex (SSC) was deleted by its author, Scott Alexander, in June 2020 after The New York Times told him it planned to publish his real name. He later relaunched the blog as Astral Codex Ten at https://astralcodexten.substack.com/. If you are looking for the old posts or wondering whether the site still exists, the short answer is: the original domain is gone, and the active successor is Astral Codex Ten.

What happened to the original blog

According to the site's own posts, Alexander removed Slate Star Codex because the Times was preparing an article that would reveal his legal name. In his post "NYT Is Threatening My Safety By Revealing My Real Name, So I Am Deleting The Blog," he framed the deletion as a safety measure, not a decision to stop writing.

The timeline visible on the site:

  • June 2020 – The blog is deleted.
  • September 11, 2020 – Alexander posts "Update On My Situation," saying he had not heard from the Times either way and was unsure whether the article had been dropped.
  • January 21, 2021 – He announces "Introducing Astral Codex Ten," pointing readers to the new Substack.

Where the content went

The successor is Astral Codex Ten, announced in the January 2021 post. The announcement says the new blog is hosted at https://astralcodexten.substack.com/, and that Alexander intended to get "a less unwieldy domain name working soon."

What carried over, based on the site's structure:

Element Original SSC Astral Codex Ten
Author Scott Alexander Scott Alexander
Platform Self-hosted blog Substack
Content style Long-form essays, links, open threads Same general approach
Community Comments, subreddit, Discord, podcast Community channels continued around the new blog

The original site also linked out to an SSC Discord server, an SSC Podcast, and an SSC Subreddit, so the community existed in several places beyond the blog itself.

What to do if you want to read it now

  1. Go to https://astralcodexten.substack.com/ for new posts.
  2. Use the Archives on the original site's structure as a guide to what existed, but expect the old domain to be inactive.
  3. For community discussion, look for the channels that were listed alongside the blog (Discord, subreddit, podcast).

Common points of confusion

  • The blog was not taken down for its content. The stated reason was the planned reveal of the author's identity.
  • "Deleted" does not mean "lost forever." Much of the writing was mirrored, archived, and discussed elsewhere, and the author continued publishing under the new name.
  • Astral Codex Ten is not a separate project by a different person. It is the direct continuation announced by the same author.

If your goal is simply to find where the writing continues, Astral Codex Ten is the destination. If your goal is to understand why the original disappeared, the answer is the New York Times identity threat described in the author's own posts.