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Brad Koehn

@thomasfuchs While there is value in stability, that’s not why banks still run on the mainframe. It’s just cost/benefit analysis: it’s cheaper to live with all the technical debt than it is to figure it all out and rebuild it. COBOL didn’t win because of any intrinsic value, it’s just where investment stopped.

or COBOL just won, period. I wrote COBOL professionally, dealt with very large data sets, and had extremely performant solutions that are just now possible on desktops 30 years later. But please, do go on about how anyone would replace working, tested, performant code in 2000 when they could... spend it on something that wasn't.

@bkoehn @thomasfuchs

the banks and insurance companies running cobol i've heard devs gossip about have kept polishing their code and updating relevant parts to utilise late additions to the language, and some of them also spend a massive amount of resources on quality of life tooling and knowledge sharing