> I really, truly, honestly believe that above 9 hours a day for an extended period of time actually ends up hurting your development efforts. Maybe for a lot

> I really, truly, honestly believe that above 9 hours a day for an extended period of time actually ends up hurting your development efforts. Maybe for a lot of people, but generalizations like that are never true for everybody. Different people have different amounts of time they can work without reducing productivity.