As a physicist he had learned that of the 70 years of complete human life at least 2/7, viz.
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Einstein was a famous physicist.
On the eve of the 1st Wave, the world’s leading theoretical physicist, one of the smartest guys in the world (that’s what popped up on the screen under his talking head: ONE OF THE SMARTEST GUYS IN THE WORLD), appeared on CNN and said, "I’m not encouraged by the silence.