Wow, I'm blown away by Holden Karnofsky, based on this post alone. His writing is eloquent, non-confrontational and rational. It shows that he spent a lot of time constructing mental models of his audience and anticipated its reaction. Additionally, his intelligence/ego ratio appears to be through the roof.

Agreed. I normally try not to post empty "me-too" replies; the upvote button is there for a reason. But now I feel strongly enough about it that I will: I'm very impressed with the good will and effort and apparent potential for intelligent conversation in HoldenKarnofsky's post.

Now I'm really curious as to where things will go from here. With how limited my understanding of AI issues is, I doubt a response from me would be worth HoldenKarnofsky's time to read, so I'll leave that to my betters instead of adding more noise. But yeah. Seeing SI ideas challenged in such a positive, constructive way really got my attention. Looking forward to the official response, whatever it might be.