Programming vs Marketing

Programming is science. The same script, given the same  variables, will always return the same result. Programming is  consistent, repeatable, analytical.

Marketing is art. There aren't two identical marketing campaigns. Marketing is hit-and-miss, creative, constantly re-invented.

Science is learned through theory.
Marketing is learned through practice.

Programmers who want to learn marketing and marketers who want to  learn programming struggle because they need to change how they  think and, most importantly, how they learn.