I disagree, because your mental model of a large code base that only has one error is absurd. Scientific code is not magically easier to write than real code. Get two random code hacks to write two significantly-sized codebases, say, about the size of a decent web framework, and you won't get one perfect code base and one with a subtle bug that has ramifications down the line. You'll have two code bases so shot through with bugs that they will never reconcile, ever.
The quality issues aren't all that different than a web framework, either. Release one or a small number of code bases, and have everybody pound on and improve them, and you might get somewhere. Have everybody write their own code bases from scratch every time and you'll get yourself the scientific equivalent of http://osvdb.org/search?search[vuln_title]=php&search[te... .
To be honest at this point when I see a news article that says anything about a "computer model" I almost immediately tune out. The exception is that I read for some sign that the model has been verified against the real world; for instance, protein folding models don't bother me for that reason. But this is the exception, not the rule. When it became acceptable "science" to build immense computer models with no particular need to check them against reality before running off and announcing immense world-shattering results I'm not exactly sure, but it was a great loss to humanity.
The quality issues aren't all that different than a web framework, either. Release one or a small number of code bases, and have everybody pound on and improve them, and you might get somewhere. Have everybody write their own code bases from scratch every time and you'll get yourself the scientific equivalent of http://osvdb.org/search?search[vuln_title]=php&search[te... .
To be honest at this point when I see a news article that says anything about a "computer model" I almost immediately tune out. The exception is that I read for some sign that the model has been verified against the real world; for instance, protein folding models don't bother me for that reason. But this is the exception, not the rule. When it became acceptable "science" to build immense computer models with no particular need to check them against reality before running off and announcing immense world-shattering results I'm not exactly sure, but it was a great loss to humanity.