" But what is the sense in forever speculating what might have happened had such and such a moment turned out differently? One could presumably drive oneself to distraction in this way. In any case, while it is all very well to talk of ‘turning points’, one can surely only recognize such moments in retrospect. Naturally, when one looks back to such instances today, they may indeed take the appearance of being crucial, precious moments in one’s life; but of course, at the time, this was not the impression one had. "

― Kazuo Ishiguro , The Remains of the Day