Which is precisely why it's easy to be productive at that time in the morning - fewer people around mean fewer distractions. From the article: By waking up at

Which is precisely why it's easy to be productive at that time in the morning - fewer people around mean fewer distractions. From the article: By waking up at 4 a.m., they’ve essentially wiped a lot of those distractions off their plate. No one is expecting you to email or answer the phone at 4 a.m.