What if the calculator was never invented? We’d still be multiplying large numbers in our heads. On paper. With patience, pride and Camlin pencils. And we’d have probably considered that a measure of our own intelligence. Schools would have tested our sons and daughters on it. Employers would have valued it. And people would have built entire careers around it. But that isn’t the case. Thankfully. The calculator arrived. And a skill that previous generations spent years perfecting like addition, multiplication, accuracy became far less important, almost overnight. Did we lose something? Technically, yes. But did we care? Not really.…