Ask a tech worker how AI has changed their jobs, and chances are they'll answer with a single number: hours saved. In interviews with Business Insider, Big Tech software engineers, product managers, and data scientists described using AI to compress hours of work into minutes. They use it to draft documents, summarize months of meetings, review code, automate reports, and more. Faster doesn't always mean easier, however. One Amazon data scientist said AI is adding hours to his workweek as he