It looks like Scott did have an exclusive arrangement, but it expired at the end of 2021: "We've agreed I'm here for a year, but if it goes badly I can leave in 2022 with no hard feelings." https://astralcodexten.substack.com/p/logistics?s=r

I've been thinking that it would be cool to embed prediction markets directly into ACX. However, ACX is on Substack, and Substack does not support embeds.

So the alternative proposal would be to mirror ACX content on Substack directly. Stephen thinks that ACX has a deal with Substack such that their content must be exclusively hosted there; I'm very skeptical, given that Zvi crossposts his content everywhere.

💬 Proven correct