I agree with this framing.
The issue of characterizing in what way Our World is Special is the core theoretical question of learning theory.
The way of framing it as a single bottleneck 3-4 maybe understates how large the space of questions is here. E.g. it encompasses virtually every field of theoretical computer science, and physics& mathematics relevant to computation outside of AIT and numerical math.
I agree with this framing. The issue of characterizing in what way Our World is Special is the core theoretical question of learning theory.
The way of framing it as a single bottleneck 3-4 maybe understates how large the space of questions is here. E.g. it encompasses virtually every field of theoretical computer science, and physics& mathematics relevant to computation outside of AIT and numerical math.