of the day
A real computer scientist will dedicate months of patient effort to reduce the asymptotic time of an algorithm from n log log n to n log log log n and never implement it.
A real programmer come up with the n log log log n solution while eating cold pizza in the morning and then implements an n^2 solution anyway.
A real software engineer derives the n log log log n solution using the formal specification and then discards it as an implementation detail.
A real user doesn't even understand what a n log log log n solution means.