Still, you need to have a grasp of the fundamentals and etc to
know that some theories are indeed wrong. Otherwise, you won't
really be able to prove them wrong.
I like the attitude of the author of this book I'm reading, Tim
Harford of "The Undercover Economist". He first explains a
fundamental Economics concept, then he exposes the flaws, and
offers a much better alternative. The scientific method of
dispelling a theory.
Otherwise, you can rant till the cows come home, you won't be able
to win anyone over to your point of argument, even though you may
be right.
