There’s nothing inherently commendable, or deplorable, in liking, or not liking, babies, or women with babies: it is what it is. And I encountered exceptions, in all categories. But when, without a baby, you walk by hundreds of people a day for years, and then, with a baby, you walk by hundreds of people a day for months and months, you feel you have slip-slided into another strata or you feel you have gone pre-Cambrian, or, perhaps more accurately, that you are contributing, somehow, to the next geological stratum (or both at once) and you begin to wonder what formed each geological layer, and what really was the geological layer you were in before, and what is the geological layer you are in now, and how was it that each layer seemed, individually, when you were in it, to be everything. Did a meteor crash, or the climate abruptly