Today in moments that perfectly capture everything wonderful and terrible about being human: In this video, a cherubic 5-year-old in a princess dress weeps with wild abandon at the realization that her adorable baby brother will get older one day at a time until he becomes a man, his all-too-brief babyhood forever lost to the drifting sands of time.

Is there anything worse than that moment at which you suddenly recognize that all lives will one day come to an end? Is there anything to do but cry and hug your brother's head as though to protect him from the ghastly onslaught of time?

Sniff.