David Markson said this quote

Although one curious thing that might sooner or later cross the woman's mind would be that she had paradoxically been practically as alone before all of this had happened as she was now, incidentally. Well, this being an autobiographical novel I can categorically verify that such a thing would sooner or later cross her mind, in fact. One manner of being alone simply being different from another manner of being alone, being all that she would finally decide that this came down to, as well. Which is to say that even when one's telephone still does function one can be as alone as when it does not.