[paskozdilar]

I agree, but even modularity is just an implementation detail, rising from the finiteness of human work capacity and computer resources. Algorithmic solution to the problem is the same, whether it is implemented in a single implementation-specific C file or a cross-platform multi-repo project. Also, it is (IMHO) much easier to learn engineering principles, than how to solve algorithmic problems. The latter is akin to solving mathematical problems, which require finding a problem-specific needle of knowledge in the haystack of mathematics.