Six categories of Data Scientists

There is a snag with the reasoning in the last paragraph and I can only speak to data engineering, software engineering and machine learning because that is my background. People who are genuinely good in these areas are actually quite rare. There is a lot more to being a really good programmer than knowing a few programming languages and knowing a few programming languages doesn't really count if they are all of the same type because Java and C for example do not entail a different mindset and/or approach to problem solving. The practising programmer who actually learned how to program properly is the exception not the rule. When I took Andrew Ng's Coursera Machine Learning course he would repeatedly say from (I think) as early as after he taught logistic regression, that people on the course already knew more than many machine learning practitioners in Silicon Valley.