Meta theories should be evaluated by their fruits, theories they help cognitive system to discover. By how good the theories are and how easy it is to discover

Meta theories should be evaluated by their fruits, theories they help cognitive system to discover. By how good the theories are and how easy it is to discover them. For example: instead of teaching a child a great bunch of theories one can teach it a simple/short meta-theory and see if the child, based on its experience with the world, discovers a greater bunch good theories.