"A common issue with SF settings is that causally disconnected civilizations nevertheless are close enough in technological development that conflict is possible, rather than it being a matter of laser cannons against a thin film of single celled organisms."

“It's true that the average human in the Xeelee universe can't eat Jell-O with a straw without accidently removing an eye but these particular humans start off no stupider than than any other human of their era and proceed to breed themselves into imbecility. Well, farther into imbecility.”

“In point of fact, the meteor was something like 30 km when it exploded. It was over north Waterloo and I was north of St Agatha. Two spherical clouds, and two explosions. Unfortunately, I was dealing with a goat that was trying to eat an oil truck's fuel line, goats having this optimistic 'Well, maybe it has become edible since they last time I tried this' worldview, and I missed seeing the explosions.”

“Creating stars in laboratories on the very planets you inhabit turns out to be a bad idea.”

“Before it exploded one night, I went to a four grade, two room schoolhouse and we had textbooks from the 1940s.”

“Atomic war is bad but you know what’s even worse? Having had enough atomic wars that you can rank them in terms of horribleness.”

“If there's a stack , the unpromising stuff goes at the top and the promising stuff goes at the bottom. That way, I am eager to finish Overwrought Romantic Mary Sue Fantasy because I know that will let me read Niche Product That Only the Author, James and Some Guy at JPL Likes.”