Don Knuth further elaborates on this in his great book Things [0], [2]:
> The truth in fact is that C. P. Snow got it wrong by at least an order of magnitude — there are many more than two cultures. I think
a lot of you know the Apple Macintosh ads telling us to “think different,” but people already do. From my own corner of the academic
world, I know for example that physicists think different from mathematicians; mathematicians who do algebra think different from
mathematicians who do geometry; both kinds of mathematicians
think different from computer scientists who work on algorithms;
and so on and so forth. People often decry this lack of unity in the
knowledge of the world, but let’s face it: People are different. Vive
la différence.
Fun fact: PG mentions the two cultures while writing about Knuth [1]
He does address that criticism on pages 9-10. He recognized the point, but felt that "two cultures" was a sufficient first approximation to make an interesting argument.
His "two cultures" point is made in the first section, and people tend to ignore the rest of it. His main purpose was to bemoan the lack of emphasis on engineering education in the West, and to argue that the rich nations need to export engineering skills to the poorer nations to help them develop.
> The truth in fact is that C. P. Snow got it wrong by at least an order of magnitude — there are many more than two cultures. I think a lot of you know the Apple Macintosh ads telling us to “think different,” but people already do. From my own corner of the academic world, I know for example that physicists think different from mathematicians; mathematicians who do algebra think different from mathematicians who do geometry; both kinds of mathematicians think different from computer scientists who work on algorithms; and so on and so forth. People often decry this lack of unity in the knowledge of the world, but let’s face it: People are different. Vive la différence.
Fun fact: PG mentions the two cultures while writing about Knuth [1]
[0]: http://web.stanford.edu/group/cslipublications/cslipublicati...
[1]: http://www.paulgraham.com/knuth.html?viewfullsite=1
[2]: https://en.wikipedia.org/wiki/Things_a_Computer_Scientist_Ra...