How does the quote go? "Any sufficiently advanced technology is indistinguishable from magic." (Or something along those lines.)
Anyway, if the point is to write maintainable code, it still seems reasonable to document well enough that the intent is clear. Code comments aren't only for beginners. They also serve to illustrate to future maintainers that "you really did mean to do that." Plus, they will help to save time as someone else familiarizes him/herself with your code. Or is that "h(?:im|er)self"? ;)