Headline is somewhat click-baity but the author makes the point well. Reading and Thinking through a program (i.e. playing Computer) is a mandatory skill for a

Headline is somewhat click-baity but the author makes the point well. Reading and Thinking through a program (i.e. playing Computer) is a mandatory skill for all Programmers. Yes it is time-consuming, tedious and maybe not always Optimal, but there really is no other way. All Debuggers/IDEs/Analysis tools are an adjunct to actual Thinking through the code since the use of any of the above presupposes some understanding of the code.