I am reminded of a Jack Vance quote, where one of the characters is "capable of performing complex calculations in his head and furnishing the results in an ins

I am reminded of a Jack Vance quote, where one of the characters is "capable of performing complex calculations in his head and furnishing the results in an instant, whether they are right or wrong". I cannot find any reference to handling of soft errors in their material. One rather banal approach is to do everything twice and check the results; effective, but I'm not sure that they do this. They may be simply putting their heads in the sand.