Humans needed water or they would die, but dirty water killed as surely as thirst. You had to boil it before you drank it. This culture around tea wa… - Neal Stephenson

I can never get past the structural similarities between the Singularity prediction and the apocalypse of St. John the Divine. The key thing they have in common is the idea of a rapture, in which some chosen humans will be taken up and made one with the infinite while others will be left behind...[loosely paraphrasing Jaron Lanier] while hardware might be getting faster all the time, software is shit. And without software to do something useful with all that hardware, the hardware's nothing more than a really complicated space heater.

This was governed entirely by Newtonian mechanics. Each piece of the moon attracted every other piece more or less strongly depending on its mass and its distance. It could be simulated on a computer quite easily. The whole rubble cloud was gravitationally bound. Any shrapnel fast enough to escape had done so already. The rest was drifting around in a loose huddle of rocks. Sometimes they banged into one another. Eventually they would stick together and the moon would begin to re-form.

Hiro watches the large, radioactive, spear-throwing killer drug lord ride his motorcycle into Chinatown. Which is the same as riding it into China, as far as chasing him down is concerned.