What are these “outside of the Overton window” approaches to preventing AI apocalypse that Eliezer was talking about in his post?

[lumenwrites]

In his latest post, Eliezer says:

However, all known pivotal acts are currently outside the Overton Window, and I expect them to stay there.

I’m just curious, what kind of pivotal acts is he talking about? I can’t think of any myself, maybe someone smarter can enlighten me in the comments.

[deleted]