Anyhow, she knew when she looked into her heart she’d never really wanted kids anyhow. She’d seen how kids dropped from the sky and exploded people’s… - Stephen Baxter

To some extent the human race today seems to react as a single organism to great events. After all, we live in a wired world. Memes—information, ideas, fears, and hopes—spread around the media and online information channels literally at light speed.
It may be that this mass reaction is the greatest single danger facing us.

“No. You are wrong. These structures are alive.”
“What?”
“By any reasonable definition of the word. They can reproduce themselves. They can manipulate the external world, creating local conditions of increased order. They have internal states which can change independently of external inputs; they have memories which can be accessed at will…All these are characteristics of Life, and Mind.

Why should it be so? It was as if humans built such places as this with the sole purpose of finding ways to dominate each other.
Muub listened to Adda’s clumsy explanation of this. “But it’s inevitable,” he said, his face neutral. “You have to have organization—hierarchy—if you are to run the complex, interlinking systems which sustain a society like the City with its hinterland. And only within such a society can man afford art, science, wisdom—even leisure of the most brutish sort, like these Games. And with hierarchies comes power.” He smiled at Adda, condescending once more. “People aren’t very noble, upfluxer. Look around you. Their darker side will find expression in any situation where they can best each other.”