I wonder if second system effect looms large in the minds of those who are maintaining those COBOL programs. At least with a legacy program, you probably know t

I wonder if second system effect looms large in the minds of those who are maintaining those COBOL programs. At least with a legacy program, you probably know that it can keep running for another year for a predictable cost. On the other hand, spinning up a scratch build of its replacement is potentially a black hole. I've witnessed second system effect.