Good post with loads of valuable points. This document clearly shows that "master" programmers focus on very different things than a beginner might expect. A b

Good post with loads of valuable points. This document clearly shows that "master" programmers focus on very different things than a beginner might expect. A beginner can get really excited and proud making something complex work without noticing the flaws. After years of debugging your own code you'll find out that getting complex things done is not really the issue, it is HOW it's being done that makes the difference. Beginners tend to focus on new language features, premature optimisations, having unnecessary strong opinions about wether using a for loop or map or reduce etc.., using too many and buggy libraries, literally copy and use code from others without noticing it's flaws, getting pride from writing complex code that almost no one can understand, trying to beat the calculator, trying to beat Google with your own memory, over estimating the value of linters, CI, TDD, agile, what editor to use, etc.., etc... All these things take up so much space and energy at the cost of what really matters if you want to do what a master does: write bug free code that is easy to maintain and a joy to read.