[greiskul]

And Mel is a great story, but it is also misses that engineering is about tradeoffs. And in many, many programs, space and time efficiency is actually way, way less important than maintainability, extensibility, etc. There will always be the cases where deep knowledge of the fundamentals of computers and computer science will make or break a program. But for a large part of most programs, premature optimization is still the root of all evil.