It's bad enough even when you've got years of experience of debugging programs and you find an error that only reveals itself at the end of some long sequence o

It's bad enough even when you've got years of experience of debugging programs and you find an error that only reveals itself at the end of some long sequence of operations. For a language that's supposed to be targeted at the inexperienced, letting bogus results propagate is just cruel. I'd definitely incline towards an immediate abort. But for processes that run overnight, presumably because they take a long time, who can say? If there's a 1 day turnaround time, and the results are so important that it absolutely must not stop, and yet inexperienced programmers are responsible for writing the code that runs... well, I'm not sure one thing is going to be a huge improvement over something else. It's probably going to end up a bit painful whatever you do.