“That is what is strange—that friends, even passionate love, are not my real life unless there is time alone in which to explore and to discover what is happening or has happened. Without the interruptions, nourishing and maddening, this life would become arid. Yet I taste it fully only when I am alone.”

Of course, there are downsides to each model of relationship. People whose friendships primarily consist of sporadic deep dives probably feel a higher degree of loneliness day-to-day during dry spells in-between the deep dive nourishment. (If you’re in an intimate romantic relationship, this can be okay because you tend to share minutia/quick hits with your spouse so don’t need to lean on friends as much for this.) People whose friendships primarily consist of regular quick check-ins and texts and workday lunches probably feel some lack of depth with some of their so-called “close friends.” They realize that after years of “how was your day?” conversations and staying up to speed on the real time relationship drama or work battles that will someday be easily forgotten — they realize that they’ve never explored life’s deeper questions with their friend.