Even the best of us have certain psychological mechanisms that can suddenly kick in and turn us into monsters. That to me is the basic message of events like the rise of Nazism, the Salem witch trials, and so on: not that bad people do bad things, but that good people do bad things. It's distressingly easy for those mechanisms to be triggered, either consciously by demagogues, or naively by people who think they're trying to do the right thing. Which is why I think it's more akin to tic-tac-toe.

Hiro is a talented drifter. This is the kind of lifestyle that sounded romantic to him as recently as five years ago. But in the bleak light of full adulthood, which is to one's early twenties as Sunday morning is to Saturday night, he can clearly see what it really amounts to: He's broke and unemployed.

What are letters?” “Kinda like mediaglyphics except they’re all black, and they’re tiny, they don’t move, they’re old and boring and really hard to read. But you can use ’em to make short words for long words.

A lot of secular, modern people claim to be disillusioned whenever they learn that any smart person is religious. That's applicable to Newton as it is to any other religious smart person

But they had, perversely, been living among people who were peering into the wrong end of the telescope, or something, and who had convinced themselves that the opposite was true - that the world had once been a splendid, orderly place...and that everything had been slowly, relentlessly falling apart ever since.

Let's set the existence-of-God issue aside for a later volume, and just stipulate that in some way, self-replicating organisms came into existence on this planet and immediately began trying to get rid of each other, either by spamming their environments with rough copies of themselves, or by more direct means which hardly need to be belabored. Most of them failed, and their genetic legacy was erased from the universe forever, but a few found some way to survive and to propagate.

The science fiction approach doesn't mean it's always about the future; it's an awareness that this is different.