30/30 is a completely infeasible ratio for a work environment, but the author isn't doing billable work- he's a student. As a student, his concern is raw produc

30/30 is a completely infeasible ratio for a work environment, but the author isn't doing billable work- he's a student. As a student, his concern is raw productivity. Ratio aside, the principle is sound. The Pomodoro Technique mentioned in other comments seems like a good fit for the workplace. 25/5 is very easy to use on the job, and you still reap the benefits of intent focus plus frequent breaks.