Measuring the immeasurable requires not just technology, but imagination.
膨胀的概念是宇宙在其最早的时刻经历了一段极其迅速的扩张期。
There are other reasons --There are other reasons why it's perhaps harder now to feel calm than ever before. One of these, and it's paradoxical, because it's linked to something that's rather nice, is the hope we all have for our careers. Never before have expectations been so high about what human beings can achieve with their life span.