This is a relatively widely known claim, https://stackoverflow.com/questions/966800/mythical-man-month-10-lines-per-developer-day-how-close-on-large-projects ht

This is a relatively widely known claim, https://stackoverflow.com/questions/966800/mythical-man-month-10-lines-per-developer-day-how-close-on-large-projects https://stackoverflow.com/questions/966800/mythical-man-mont... It's debatable how accurate it is, but I think the ultimate productivity of developers is actually surprisingly lower than you would think.