I hear you on the FP part, though. Forget "higher order functions" and such, just the idea of "pure function" was hard to get across to some coworkers 10 years

I hear you on the FP part, though. Forget "higher order functions" and such, just the idea of "pure function" was hard to get across to some coworkers 10 years ago. "Why would you want to trace the dataflow through the routines, as a pipeline, rather than just whacking on the DATA DIVISION, er, beans / instance variables, as needed???"