Item 3 appears to assume that "the answer" is somewhere in the manual. This is simply not true.
Computer manuals consist entirely of "for additional information see ..." intended to lead anyone consulting them in infinitely nested loops of more "for additional informations see ..." with the expectation that eventually they'll forget what the question was.
There are no answers in any known computer manual.
(I've looked.)
Help files are much more efficient, since you can circle through the infinite loops without turning pages. You can thus do many more loops before you forget what the question was.