What is demonstrated here is that if you understand well the different parts of some code, you can recombine them in more efficient ways. This is something ver

What is demonstrated here is that if you understand well the different parts of some code, you can recombine them in more efficient ways. This is something very good to have in mind, but it must be applied strategically. Avoiding "clean code" everywhere won't always provide huge performances win and will surely hurt maintainability.