Or they may suggest the remarkable brevity of our lives in the cosmic scale of time. If the estimated age of the cosmos were shortened to seventy-two years, a human life would take about ten seconds.

• 或者它们可能说明了在宇宙的时间里，我们生命的异常短暂。如果宇宙的估计年龄被缩短到72年，那人的生命大概只有10秒钟。