Absoutely. No one can work all the time. If I go for a walk after a few hours in the studio, I see the world as a source to draw from, a fountain of ideas. The world inspires because the work is an inspiration-tinted lens.
Going for a walk after a few hours of chatting online after a few hours of cleaning the bathroom after a few days of not working --- then I rarely find myself inspired; what feels like inspiration is mundane once realized, like the violent discovery that milk's gone sour. The only benefit gained is that I'm working again.