How do you find the limits of areas on a chart?

Recently, Mxsmanic posted:

Neil Gould writes:

How on Earth would you have the slightest idea as to whether it is or
isn't????

Because, as I have previously explained, I study. While neonates may
be constrained to learn only through direct experience and trial and
error, older human beings have the option of looking things up.

The error that you repeatedly make is thinking that reading alone will
give you insights into a physical experience. It won't. All pilots study,
and are well-read on the topic of flight; if they weren't, they wouldn't
even get so far as to be student pilots. In addition to the reading, we
have practice; many hours of translating the theory of flight into the
physical reality of flight under the guidance of those who have flown and
can correct our misunderstanding. It isn't until we have demonstrated
proficiency as well as a level of knowledge that we are granted a
certificate. Regardless of your high opinion of yourself, you are not
going to even come close to flying with MSFS. To make matters worse, you
don't even read the references that you're given that answer your
primitive questions, preferring to be spoon-fed in a newsgroup, but you
lack the level of knowledge necessary to understand the answers that are
given. So, to put things into your frame of reference, if we are neonates,
you haven't even managed your first cell division.

Neil