Suppose you have a consumer class action involving thousands, or millions, of consumers who ingested a tainted supplement. How do you settle a case of that scope? Or a data breach incident that exposed the personal identifying information of thousands of consumers? How can you calculate unpaid wages for hundreds or thousands of employees without examining payroll records of each individual employee? And if you are not able to settle these cases, how do you present proof at trial of these large data sets?

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