The old maxim goes like 10 lines per day on average (of fully "developed" and tested code). 90% of time should be spent on studying textbooks, reading other pe

The old maxim goes like 10 lines per day on average (of fully "developed" and tested code). 90% of time should be spent on studying textbooks, reading other people's code (only the best authors, like Joe Armstrong or Simon Marlow or Rich Hickey, you know), [wishful] thinking, visualizing, drawing diagrams (using a pen and paper, no UML and shit), writing pseudo-code (like they do in AIMA), [unit]tests (before code!) and then just 10% of time for coding, when you know what exactly you are doing and why. This, by the way, is called "slow thinking".)