Econ lecture from a man who never took an econ class

Charlie Munger, Warren Buffet's partner talks about the 9 objections to economics. What follows are my interpretation of his main objections:

1. If you give a man a hammer, every problem looks like a nail.
2. Hubris: Economists grab from other disciplines without acknolweldging the validity of other approaches.
3. Physics Envy: predictions logically derived from the wrong theory are wrong.
   
4. Too much macro, not enough micro.
5. Not enough synthesis of models with real world observation.
6. Ignorance of psychology; similar to 2.
   
7. Be roughly right, rather than precisely wrong; similar to 5.
   
8. Febezzlement: same as 7.
9. Willful ignorance of effects of vice and virtue; similar to 2, 6.

Well, it’s time to repeat the big lesson in this little talk. What I’ve urged is the use of a bigger multidisciplinary bag of tricks, mastered to fluency, to help economics and everything else.

And I also urged that people not be discouraged by irremovable complexity and paradox. It just adds more fun to the problems. My inspiration again is Keynes: Better roughly right than precisely wrong. And so I end by repeating what I said once before on a similar occasion. If you skillfully follow the multidisciplinary path, you will never wish to come back. It would be like cutting off your hands

HT to Greg Mankiw