Spreadsheet Errors
Spreadsheets seem much more accurate than humans. When you think about how long it would take to add up columns of numbers, calculate ratios… humans would take much longer and make many more mistakes.
This lures us into a sense of false security. When we make small mistakes in a spreadsheet, the spreadsheet will faithfully keep calculating results – when a human might spot the error.
Academic studies repeatedly find we are too confident in the accuracy of our spreadsheets. Audits find most spreadsheets have large numbers of serious spreadsheet errors.
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