I have specialized knowledge. Calculus 2, statistics, then econometrics, and then i taught. I can read the data. And having this specialization, I can tell you : you don't need it. Anyone can figure it out of they just try. But since you think credentials matter, I have plenty. You've made some silly assumptions.
None of those qualify you as a medical doctor or -expert. Don't be so arrogant to assume you don't need the relevant education and experience. I have nowhere assumed that you weren't (well) educated.