You may have heard the expression: Rubbish in, rubbish out.
Forty years ago Coco used a early version of SuperCalc (SC2 – a spreadsheet like Excel for those who cannot remember) for the preparation of monthly reports under the operating system C/PM. It was ‘cutting’ edge at the time using simple lists of transactions which were converted into a report showing monthly, cumulative and projected figures against a flexible budget. Coco shall not go into the technical details of this. It was not many months before Coco noticed that the report sometimes did not balance.
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