Title: Most problems fall within a 100x tractability range (under certain assumptions)
Author: Thomas Kwa
Why it's good: I don't have time to write a long comment, but this is one of the posts where my first reaction was, "no way," and then I went and checked the math and was convinced. Since then, I've often thought of it and brought it up — I often hear people say or imply, "sure, the scope of X is huge and it's really neglected, but maybe it's massively more intractable..." without an explanation for why X is so unusual.
Title: Paul Christiano on how you might get consequentialist behavior from large language models
Author: Paul Christiano
URL: https://forum.effectivealtruism.org/posts/dgk2eLf8DLxEG6msd/how-would-a-language-model-become-goal-directed?commentId=cbJDeSPtbyy2XNr8E
Why it's good: I think lots of people are very wrong about how LLMs might lead to consequentialist behavior, and Paul's comment here is my favorite attempt at answering this question. I think that this question is extremely important.