> People spend far too much time ruminating about what makes an especially productive programmer. Essentially it comes down to making good choices most of the time, so basically IQ.

Are making good decisions and IQ directly correlated?

Largely, yes. People with high IQ live longer healthier lives, make more money, have greater life satisfaction etc...

Even Google admits that IQ is the best predictor of job performance but they go on to say that the metric is discriminatory.

*one-person ftfy