Is There a Comparative Advantage?

Economists believe that 70 and 70, or zero one forty, are equivalent. They only look at the average of the primer. So i started spotting in te central papers and economics, or central books, something and the error. You can see it in ricardo. He came up with the following idea: countries should specialize where they have a comparative advantage - not absolute advantage. And n economist has yet to grasp what i was talking about.