News for hackers. Stuff that matters.
Re:Ask HN: How much of your time at work do you spend not wo... by antognini on Tuesday April 11, 2017 @12:38PM (#14089763)
This article also references about four hours as the limit that a creative professional can work every day:

http://nautil.us/issue/46/balance/darwin-was-a-slacker-and-y...

Re:Ask HN: How much of your time at work do you spend not wo... by veddox on Wednesday April 12, 2017 @05:36AM (#14096103)
A fascinating article, thank you for sharing!