It’s worth pointing out, I think, that Feynman concludes by saying that a bit of luck was involved: “Furthermore, the whole idea of an approximate method was b

It’s worth pointing out, I think, that Feynman concludes by saying that a bit of luck was involved: “Furthermore, the whole idea of an approximate method was beyond him, even though a cubic root often cannot be computed exactly by any method. So I never could teach him how I did cube roots or explain how lucky I was that he happened to choose 1729.03.”