From a time when all mankind feared Godlike explosions that would wipe all life from the world. Humanity had reached the ability to destroy everything and it sent a chill down our collective spine.

We'd reached the point where we could not only destroy ourselves but every life form in existence. We had achieved the ability to destroy maybe not God but definitely the Angels.

Talk about Existential Terror. This was an artistic way of getting it out during the Cold War.

The quiet part no one speaks anymore is that we still have that ability. The Sword of Damocles still hangs above us all yet we go on, blithely unaware.