We’ve all known that person who always seems to be getting things done. Whether a friend or a colleague, this is the person whose work is always done early. The one who somehow manages to finish hour-long tasks in 20 minutes. The one people describe as a robot or machine, because surely no simple human could work as quickly as they do. And yet these people exist, cranking away at maximum efficiency. What do these highly productive people have in common? How do they do it?