I agree. Econ is a lot like Math and biology. There are basic rules and laws that ring true throughout the universe. Screw up a rule in math and you flunk a test. Screw up a rule in econ and you mess up an economy. The "old" guys understood that.
I sort of disagree.
Economics is a behavioral social study. It’s not an exact science.
Math and biology is an exact science. 2 +2 is always 4.
Unless the scientists get gubmint cheese and grant money, in which case they will cook the books and tell you that 2 + 2 means we are all going to die in a great big ball of fire unless you give us billions of dollars to save you from global warming/cooling/climate change/re runs of American Idol or anything else bad.
Heck, it’s a living.