There\u2019s even an expression (one we\u2019ve rebutted before) about how a stroller in the hall is the enemy of great art. Parenting comes with so many obligations, so many stresses\u2014it is so all-consuming, it can\u2019t help but be a distraction. But the writer Stephen Marche (who has an amazing little book on writing), once explained that \u201cBeing a writer and being a parent, I have found, are in conflict but not for the reasons most believe\u2014the loss of time, the sleeplessness, the responsibility for anoth...