part of it is that all a given cobol-backend routine might do is calculate the total tax for a given resident based on county. its hard to fuck it up because it doesn't do anything but take input, return value over cobol-> mainframe-> java interface. noobs want to add ai and selfie stick not comprehending the meaning of "if it aint broke dont fix it". cobol backends can be easy to maintain because its not trying to do 9,000 different things. same with fortran. fortran library is for specific-thing.  pytards and nodetards seem to have lost touch with the kiss principle. "no no we must has a selfie stick and an instagram interface for the supersonic fighter autopilot system to be complete ya stupid boomer!!" not a boomer btw.
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