[abiox]

> while imperative code is closer to how machine works

somewhat. less so these days than say back in the 8086 era.

cpu's these days do all kinds of wild stuff, with their long pipelines, staged execution, executing multiple instructions simultaneously, and other interesting behavior.

combine that with smarter compilers that can transform code in various ways to capitalize upon cpu developments, and you might be slightly surprised how some ostensibly boring and linear imperative code actually behaves on a present day cpu.