LOU wrote on Jul 27^th, 2011 at 8:22pm:

I'm not convinced David understands what he is doing wrong!  :-/ Lou

The good thing about the sim: fail/try until you learn.
RW: fail once and hope you have learning time left.

In the high times of the Cold War, they've shot down a fully loaded airliner being hundreds of nm off course.
http://en.wikipedia.org/wiki/Korean_Air_Lines_Flight_007
A sad but interesting read.