Rarely (unless you are working on your hobby project) you get a chance to make program simple. There are inherently complex requirements that can't be changed f

Rarely (unless you are working on your hobby project) you get a chance to make program simple. There are inherently complex requirements that can't be changed for political reasons, complex legacy interfaces to conform to et c. Interestingly, most programmers seem to think that inherent complexity doesn't exist, i.e. that any requirements can be translated into a simple program. The result of this approach are leaky abstractions that later on cause much pain to the developer and anyone maintaining the codebase.