Looking back at moments from our childhood, our adolescence, or even just a few short years ago, it’s hard not to feel a painful twinge of nostalgia. The vague ache that leaves us wanting to send an email or have a phone call where you wax on about something that you want to confirm someone else remembers is overwhelming, and even though we don’t often know what to say to these old friends about these old memories, we feel we have to saysomething. And yet, we often trick ourselves into forgetting that, not terribly long from now, we will feel that same ache about the things we’re living today. The mundane moments we’re slogging through, the underpaid jobs, the cramped apartments and the irresponsible but loving friends — these are things that will one day seem joyous, even ideal.