if you say that it doesn't take a rocket scientist to understand something, you mean that it is obvious.
Drugs equals crime. It doesn't take a rocket scientist to figure that one out.
(usually + to do something)
(redirected from it doesn't take a rocket scientist)
it doesn't take a rocket scientist (to do something)
One doesn't have to be particularly intelligent to be able to do or understand something. I doesn't take a rocket scientist to learn how to change the oil in your car.How has he not learned how to check his email yet? It doesn't take a rocket scientist.