I'm not proposing hand-engineering anything, though. I'm proposing giving the AI tools, like a calculator API, a code interpreter, search, and perhaps a suite of narrow AIs that are superhuman in niche domains. The AI with tool use should outperform a competitor AI that doesn't have access to these tools, all else equal. The reason should be intuitive: the AI with tool use can dedicate more of its compute to the reasoning that is not addressed by the available tools. I don't think my views here are inconsistent with The Bitter Lesson.
Of course, cost-wise and training time wise, we're probably a long way off from being able to replicate that in a general purpose NN. But in theory, given enough money and time, presumably it's possible, and conceivably would produce better results.