David Friedman on macroeconomics

Friedman writes at his blog Ideas

Macro is not my field. One of the reasons it is not my field is that, so far as I can tell, it lacks a theoretical structure as solid or as well supported as price theory—popularly but misleadingly called "Micro." One result is that a course on the subject is a tour of either a cemetery or a construction site.

I wonder what his father would have said about such a view?

Macro is just witchcraft if you ask me. :-)