Isn’t the history of human interaction the conversion of neighbors into enemies? Or into nonhumans, that we might deprive them of said chattels, or l… - Larry Niven

“I am Yali, and I would like to welcome you to Heaven. I hope you will enjoy your stay.” He laughed heartily, as at a private joke. “Yes, I most certainly hope you do. After all, some of you may stay forever. It is a nice place, actually, one of those infinitely rare situations where one is rewarded commensurately to one’s efforts. Surely that is Heaven by any man’s definition?”

The moral of this story is, anything you don’t understand is dangerous until you do understand it.

Cheap superconductors imply maglev trains everywhere. Computers could get big again, with RAM/ROM rising by powers of forty and fifty, if superconductors shed the heat. Laser handguns against superconducting armor. I'm not predicting; I just love playing with superconductors.