[nawitus]

>In some ways marketing is harder than programming. Writing a program, you can see your errors and find the root problem with stack traces.

That doesn't make programming easier, because expections are way higher for programming. Code correctness is orders of magnitudes higher than "marketing correctness". Marketing models are extremely fuzzy when compared to the average software.

In other words, if someone did invent a "stack trace for marketing", then the expected level of correctness for marketing would increase by a huge amount.