Einstein became melancholic.
In those intricately intertwined lines of time and space, he clearly saw that the future of humanity would be doomed in a world-class nuclear war in 1991.
He saw it very clearly—
[Douglas predicted many things correctly; in the coming decades, more and more countries would possess nuclear weapons, nuclear deterrence would be formed, and the "Treaty on the Non-Proliferation of Nuclear Weapons" would be signed in 1968.]
[Yet, in the end, war between the US and the USSR erupted. With the first nuclear weapon launched, all kinds of nuclear retaliation systems worldwide activated at the first moment, the nuclear chain reaction spread across the globe instantly, countless hydrogen and atomic bombs exploded in various parts of Earth, and thousands of mushroom clouds polluted the atmosphere completely...]
This was the prelude to the extinction of humanity.
Einstein lowered his head heavily: