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Fred Brooks published The Mythical Man-Month in 1974, describing the lessons he learned leading IBM’s OS/360 project during the 1960s. As technology goes, it’s ancient. Consider the workflow for a “debugging run”:
I once wrote a Perl subroutine that would memoize the subroutine that called it. That much was useful, but then it inserted a copy of itself into the caller, so that its callers would be memoized too. A well-placed call to aggressively_memoize could back-propagate to the whole codebase, spreading functional purity…