This reminds me of the (probably apocryphal) Mozart quote where a student asked him to teach them how to write a symphony, and was told “start with something more simple and short, for one instrument”. The student complained “but you have been writing symphonies since you were a child!”. The reply: “yes, but I didn’t have to ask how”.

The application of this idea here is that for someone to know the requirements for their system to the degree that they can really be sure that the most typical suggestions are not sufficient for them, they probably have to understand how the kernel handles swap and RAM to an extent that they don’t really need to ask this question.

People are very ready to assume that their system is way out of the ordinary, but it probably isn’t.